r q s r 1t r t t 2st s
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1 r q s r 1t r t t 2st s ss rt t 3 r r s s r s s t r r r r tr r r r r r sí r s t t r Pr r Pr r ã P r st s st Pr r sé r t s r t t s ö t s r ss s t ss r urn:nbn:de:gbv:ilm PPGEE 117/2017
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3 UNIVERSIDADE DE BRASÍLIA FACULDADE DE TECNOLOGIA DEPARTAMENTO DE ENGENHARIA ELÉTRICA BEAMFORMING TECHNIQUES FOR NEXT GENERATION COMMUNICATION SYSTEMS RICARDO KEHRLE MIRANDA TESE DE DOUTORADO SUBMETIDA AO DEPARTAMENTO DE ENGENHARIA ELÉTRICA DA FACULDADE DE TECNOLOGIA DA UNIVERSIDADE DE BRASÍLIA, COMO PARTE DOS REQUISITOS NECESSÁRIOS PARA A OBTENÇÃO DO GRAU DE DOUTOR. APROVADA POR: JOCHEN SEITZ, Dr., GE (PRESIDENTE) JO;ãPAULO CARVALHO LUSTOSA DAt OSTA, Dr., ENE/UnB (O' IENTADOR) OVA NI DEL GADO Dr., GE (EXAMINADOR EXTERNO) MAR HAARDT, Dr., GE (EXAMINADOR EXTERNO) ec: REINER S. THOMA, Dr., GE (EXAMINADOR EXTERNO) Brasília, 28 de março de 2017.
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5 FICHA CATALOGRÁFICA KEHRLE MIRANDA, RICARDO, Beamforming Techniques for Next Generation Communication Systems [Ilmenau - Alemanha] p, 297mm (EI/TU Ilmenau ENE/FT/UnB, Dr.-Ing. Doutor, Engenharia Elétrica, 2017). Tese de Doutorado, Technische Universität Ilmenau e Universidade de Brasília. Faculdade de Tecnologia. Departamento de Engenharia Elétrica. 1. Beamforming 2. Unscented transformation 2. Array signal processing I. EI/TU Ilmenau II. ENE/FT/UnB REFERÊNCIA BIBLIOGRÁFICA KEHRLE MIRANDA, R. (2017). Beamforming Techniques for Next Generation Communication Systems. Tese de Doutorado no Programa de Pós-Graduação em Engenharia Elétrica (PPGEE), Publicação PPGEE 117/2017, Departamento de Engenharia Elétrica Univeridade de Brasília, Brasília, DF, 128p e na Technische Universität Ilmenau, Publicação urn:nbn:de:gbv:ilm , Ilmenau, Alemanha. CESSÂO DE DIREITOS NOME DO AUTOR: Ricardo Kehrle Miranda TÍTULO DA TESE DE DOUTORADO: Beamforming Techniques for Next Generation Communication Systems GRAU/ANO: Doutor/2017 É concedida a Universidade de Brasília permissão para reproduzir cópias desta tese de doutorado e para emprestar ou vender tais cópias somente para propósitos acadêmicos e científicos. O autor reserva outros direitos de publicação e nenhuma parte desta tese de doutorado pode ser reproduzida sem autorização por escrito do autor. Ricardo Kehrle Miranda SQS 207 Bloco F Apt , Brasília DF, Brasil.
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7 t t t t rs 2 s r t t rs t2 r sí r r ã P r st s st r 2 t t s st t r rt t s Pr r 2 s r t t r s s rt t s r st t t t 2 s r t t t t r r r r s t t t ts t s r Pr r ré érr r r s str t ts s rt Pr r 1 tr r t t r r s t r r s t t t q s Pr r s P t r t s r s s rt r s r ts 2 r s s r t r t r t t s t t s2st s Pr r r s 2 r tr t t rr 2 s r ss r r 3 s r tr t t s t tr s r t t t t s s rs r çã r ç t P ss í r r P r t P r t r r t s rs r t s P sq s s tí ó Pq r t s rs r r 3 2 r t r t s rt çã à P sq s str t r P r t tr r ts r t t 2 2 r r r s s r t r t s rt rst r t t 2 ts
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9 t t s t r ss r t r t t ss t rt t r s t2 s s q t r t t s2st s s r s rr t 2 t r s t t s s r t s r r t t t st rt r t t r s s r t s r 1 t r r r t s t t r q r t r t s s rt r t2 r s r s t s2st s s s t r s s t t s t r t t s r t r s s s s t t r str t r t s s rt t s r s t r t s s r s r q r t r t r t r t st r s s 2 t st rts s r 2 s t 2 t s t r tt r 1 t t t s r s tr s t r r t t rr 2s t t s rt r t s r s r t q s t t rt 2 t t rr t tt r t t rr 2 s r r t 2 t s s r s r r t t t t t r r r t r s r r r r s t s t s r t t s r s s r t s s tr s t t t r t r r t s r r t q s r r s t t r s s r s r r t r rr 2s r s r s r r r s s r s r t t q s r r t t q s tr s r t r s r t t r s r s t s r t t s t t r t r 2s s P t s r s t s s t r q 2 r t r rs s 2 t t st t t t t s s t s t tr s r t s
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11 t t st r rs r 3 s t s t s s r r s s t r s t 3 r t r t s2st 3 r t3 r3 t s s t r t t t r 3 r t st t r rt r t ör s s s t r t t r ür r s r r r t r s t3 öt 3 rt tätss t r r s s t ss2st s t s st r t t s r t r s t r t r r t r s s s 3 r3 3 r3 r3 3 r str t r t r rt r t r stüt3 3 ö r st r t ü rtr sr t r röÿ r r3 t s r r ür t r s r ü t r t r ts s t3 s s t tr t t ss r s t3 s tr s 3 r ö t t s r r t s2st t s rät s üss t r r t t r t s rs r s tr s st r s r t s2st r t rät rt ss ö s s r r ü s t t 3 rstär 3 s s tör s t r 3 tr s r r r ö t s t rä r r r ss tr t s r t r tr s tör r t r r 3q 3 s ä r r r t r r r r r r s t t t rs ä s r s 3 s r t s2st r t 3 t rs ür 2st t r s r Pr t t r s r t r t ür r t 2st r s r rst t3t st s r3 r r P r t r 2s s P 3 s t r q 2 r t
12 r rs s r t r t3t r tt s r s t r s r t t r t s t t t
13 çõ s t s s r 3 s s st tâ s í tr t ú í s t r r rt ss s r s q ê r s st s ç s çã stá t t t s r s çã ó tê t t õ s ss t r s t s q s ã rt à r s q rt r çã P r sã s r s õ s ss t r s s õ s ss t r s é ss t é sã r st s çõ s q r q r t t 1 tr s ssã r rt s s st s çã t é r r s t çõ s áq áq t r t s s s r s r s s s r s í í çõ s í r str t r P r s rt r st t s 3 s stá s s r r q s t r s rõ s çã t r q t r çã à q t s r r st r s t s s r r t r r 1 r çã s rç s tr é r r çã rr s t s s s s t s çã P rt r t st tr t té s r çã 1 q rt t t r rã rr çã rr t s r r s s s r çã s r s s s tr s â s P rt t r r s 1 r s r çã s ú t s t s s q rt s s tr é ss t é s r s r t çã t r rê st tr té s r r s r r s 1 sã s s t r í r rr s r s r t r s s s s r P r ár s r í s r s té s r q t r çã st tr s r çã sã t 3 s P r s s r é t 3 t çã t s r s çã r á s t r s r s P é t t r r s 1 r t s r q ê s P r ét çã 1 st t é s r tr s r rt 3
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15 t ts t ts t r tr t r 1 t2 rr 2 t t s r tr t s t t t r r r s r s t t t t rt r rs t st q r s st q r s Pr s t s r 2 t st 2 Pr t P r r r s r t s P t r st Pr t P s t st r t t t 1 t2 2s s t s s ts r2 t r t s r r r r rr 2s t t r t s s Pr s R s t s s ts
16 r2 t r r r r q 2 r r s r t P s t r r t s rs r r r s r r q 2 r t r r s s s rt rr 2 st t s 1t r s s r s t r t r tr 1 st t t P s r s t t r t st q r s r t r tr 1 st t Pr s t r r r r s t s s ts r2 t r r r P r r ss ss t t s t r s r t t s t r s r t r t t r t Pr s P r r ss ss t rr 2 s s r t s t t r st t rr r t r t s t t r t t s t rr r t s ts P r r t t r t P r r t t t r t r2 t r s s r s s t s r t r s r 1 tr 1 t t 1 r t t s t t s r t st s
17 st r s 2 s r 2 s r 2 r är
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19 t s 2 2 r r s t2 r st t s st t t t s rs r t t t t r r t s s rs r s rt s s r t s r t s s s r t s t t t st t r t r rt r t t 2 t t s s r r 2 r t 2 q t s t r r t r t tt r t r 2 r t2 st r t st t t 2 r t s 1 t t r t r s s r t s 2 r r 1 t 2 s r 2 t r t s s r rs s s 1 t t r s 2 s t r t r r t t r t r s s r t t s r t s t t s s s rs s s r tr s t t t r r t s t r t t s t s rt t t r rt r t2 r r t r s t r t t rr 2s r t r t t s2st s t s s t t s rr t r t r s r r r s 1 t r s2st s t r t t rr t 2 s s tr r 1 t 2 t 3 3 s t s t s r 1t r t r ss t s2st s s s tr 2 r s t s t r t 3 r r t r s t t 1t r t st r s s st t s r q 2 s tr 3 t t s r q 2 r t t s r r2 s 2 t rs t s s t t s 3 r t s 3 r s t t r r 2 t t t t ss s r t r t t s r q 2 r r r t s t r t t s 3 r t t ss t rr 2s s s 1t r t t r s 1 t t st rt ts 2 t t s t s r r s t s s r s ss t t s r r s t t t s t
20 s2st s t t t t t t s2st t r t s s t s2st s ss s2st s t r t s s r s t r s ss t t r s t s tr s ss s t r s s rs s r s s 2 t 2 t rr 2s s r ss r rs r r 2 s r t s r r t r t str t t r r t r s s r s r t str t t r r t r s s r s s t s t 1tr r t t t r r s t r st t st r t 1tr t r r s s s t str t str t t r r t r s t s r s r t s r rs r t t s st s s s s s s r t s s r rr t 2 s tt r 2s t t rr 2s r r s s t s s r t t s t r s t s t s t s tr t t r rs t r s t 2 r 1 t t s r t s r s t rt t rr 2 s2st t t s r t s ss rt t t t s t r r t t t s r s t s r s t s s t s t t t t r r rs r r t s s s r r s r r t t s t t r r s tr 2 r t 2 st r t str t str t t r r r r t r s t s r s s q t2 r s s s r r str t t r r t s s st s t 2 s r r s ts s sts r r 2 2s t s q r 2 t s s t r r t r str t t r r t r t t s r s r s st t r s t s r t r t r 2 str r s s t r r t r 3 s r r rs st t r rs r q r t st t t rr t tr s r s r r t t t r t rs t s2st s t s r rs r r t s s rr t t s r r t t 2 s rr t s t r r t s r t s r s s r s r r 2 s r t t q s t t r r t t q s s r s t s2st s t t 1 t2 r r s
21 r r t r r t r r t r s s r r t t 3 rt 2 st r r t s s 3 t t r str t tt r s r r 2 s r r r r t s t r r 1 t2 tr t s2st s 1 t2 2 s s 3 r t r t s s r s s t t t rr 2 s s s r str t r s s r r t r rr 2 r rs s t s r t 2 t str t r s s r t t t rr 2 r r s s s t t r t t y r t r s s s t t s s t x r t s rt 2 r s s t r s s ts t t r r s t t t 2 s r ss s r s s r s s s t t s s r s t r s s ts t r r rr t tr 1 st t t s t s r tr s st r s r t t t t ss t t r r t s r st r rs t s t rr ss t s s r t
22 r r s s s r t rr s r r s t s s r t t s rt r s s t t s r s r s rr t r s 1 t2 1tr t s s s t s s s s s t r t r q 2 r t r rs s t t s r t s t s st t s 1t r s s r t t s rr s r s r r t s t ts s r s t t rr r t s r t r t r Pr s r s s s t t rr r st s t t 2s s r t s r t 2 s s t s r t ss t2 t rt s s t t tr t t r t r t r s t rt s s t r s r t r t t t s s t ss t2 s s t s r t t s s t t st r t r ss str t s s 2 t t ss t2 s r t r s t s t s s t t ss t s s s rr t t r s t 2 t ts s s t s s s t t s ts s tr s t t s r r r q s t r s t rr t t s s t t r s t t t s r t ss t2 s r r s 2 t s r t t t 1 ts t ss t t ss s 1 t rst 2 2 st t rr t tr s t s t t r r r t r t r s r r s t t t s t s r s str t r 2 t s t s r s s t r t rs 2s s P t r s t s s t s t P s s t r s ts t r tr s t t t st t rs r t s r r ts r str t tr 1 s 3 M N s t s r s 3 M N P t s r r r t r ts t 1 t2 t t t s t r s s r t r s r 2 r s t
23 P s s t t ts st t st r t r st s r t st t r2 t s r r s s t r t t P r t s t r r t t r 2 1 t t t ss r rt2 1 t2 rr 2 t r t q s s t r r t s r s r st s r s t r s s t rr rs t rr 2 ss 2 s t t t t t t t s s r t st 2 t t t t r t s r q t s t r r s t s r 2 r q r t t t r 2 t r t s 1 t2 s t s r 2s s t s 2 t t t s t rt t r t s t t r s s r r t t t r rs s t st t t r t rr t t r rs rs s 2 s r t s r r t t st t s t r t s rr rs ss t t t t s r t st t t t s t 2 s t s t tr s r t r t r r2 t t 1 t2 r t r2 r t r s t s t r s ts t r r r rr 2 t t s t t t rr 2 ts t t s r s s t t s t s t rr rs r r t ts r t s t t t r s q t t r rr 2 ts s t s r r t t r t r r t t t t r t 1 t2 s r s t s r s s t t t t s 2 t s r t s t r t s t 1 t2 t t s t s st t s t s 1t r t t s2st s r r t t r s r t ts r t t s r s t r s rr t r ss s2st s t r t s r r s r tt r s t s r t t r r t t t t r rs r s r s s s s t s t t r r t r r s r s s r s t s r t s rr t t t t r s t t t t s t r r t rr 2s r r t rst s t t s r s t
24 r t q s t t r r r s s r s t s r t s t r t t q s t t t t r r t r st s t s s r s t r t st r s s t 1 t2 s r ss r t q s r s t r s t s2st s 1 t2 t r s 1 t2 t r t s r s s t t t 1 t2 s r s r r t s s t t s r s t r t t 1 t2 r t s s 2 t t t r r t t r t t t s s r r s rst r t s s r rr t tr s r s rr s r r s t t r rs r s r s s s rs r s r rts t t rr 2 s s t t t s s s s t r t rr t t s r s s t r t s 1 tr 1 t t s s t r r r r 2 r rs s r st st st t rr rs t s r r t rr r t s t t t rr 2 ts r r ss ss t r rs r r t s r s t r r t s t s t r t 1 t2 t t r t r s st t rr r s t st t rr r t s r t t s t r t s r s r tr t s s t s s s t t rs t s tr t t r t s s r t t rr 2s r s s r s t r ts ts t r r r r 1 t2 s s t r r s t t r t tr t s t r r t s t r st st st r t r r t t r r t s t r r t tr s r t t r s r r 2 t r t s r t t 1 t2 r t t r s r s t t r r s r rr 2s t t s r s t t s r t t r r t t s ts s 2 t s t s t t t t s str t r s s t rt 2 r s t t s s r r t r q t2 r t t 1 t2 t r t tr t s t t t t rr 2 s r t2 r t t t s r t s t rt 2 r s t r s s s t t s r t s r t r s r rr t tr s st t r r t t 1 t2 t r t s
25 t r r s t t s ts t s s s P s t s s r t s t t s t tr t t r s r t r r t t s s t t P s t r r s s 2 t r t t t t s r t t r st t st s t t t P tr r t r st r r r r 2 t r t s t t r t s r rs t r t ts t s r t s r r 2 s t s t tr s r t r s s t ss ss t s s s r r t t t t r t rr 2 s2st s 2 t r r s t s s t t s r t t t s r t t t s s rs r t 2 r s tt rs (a,b, ) t rs r r tt s r s tt rs (a,b, ) tr s s t s(a, B, ) t s rs s r tt rs (A, B, ) s rs r ts, r r s t tr s s r t tr s s 1 t tr 1 r s t 2 t t A(:, ) C R 1 r r s ts t r t t i t A C R I r t r (A) r s ts t r 2 t t t s t tr 1A t t t r t t [T ] (r) s t r tr 1 T T r A s t r t r t t t t s r T t tr 1 A r r t r r r t t r r t r t rs r t 2 r s t 2 tr r t r t s s s t s r r r t r t r E{ } st s r t 1 t r t
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27 r ss s rt t 2 r s s s s t t t s t s 2 t s2st s t rr 2 t s r 2s rt t r t t r t r t r r s r t t s r t rr st t s s r r s s r s s t r t s r r t r r t s str ts t t t r rs s s t r t r Pr ss r P s t r 2 str r r 2 str st t s t r 3 r r r t t s t ss t2 r t r t s r s t t s t rs s t r r s r r r s r t r ts s s r rr 2 s t s s t t t r r r t s t t r r t s rs t r t r s t s r t s s r r t t 1 t2 r s r r r t 2 t r r P s s r s r s r r t r t s t2 t t t rs r r t st s s s r t t s s r r s r s s t st t s st t t ts r r 2 r st t s s t t r t q s s t s 2 ss rr t t s t r rs s t r st s s s s 2 r s t 2 rr t r r s s r s r t s s s ss 2 t t st t s r ss s s r t s s r t st st t r st r t t r st r t t s 2 s str t r 1 t
28 t st st r t str t r s ss r r t r r s t s r t s s r t s t t t t s t s r str t r t s r t st sq r s t r 1t r r s s r s 2 r r t r t st r t s s s r t t r st r t t st st r t r r s r s s s 2 tr t rt r t r r t rt r t t r r r s r t s s s r r ss st r s s tr t s t t s r s r t t r r r t st s s st t st st r t s t t t t t r t r r t r t 1 t2 t st st r t t s r r st st r t r r s r s s t r s t r s t s t s tr t t s r s t s t t t st t t rt r rs r r t r 2 1 t2 s s r r s 2 r r t r t st s t s t r r s s r s t s t s r s t r s ts r r 2 t s t s s t ss t t d s r s r tr s tt r t s2 s t t n t t st t t s r s r r 2 r t r r t rr r ts r s r r r r rr 2 s ss t s M s tr s s r ts t t r t s t s r r t r s2 s r t t 2 r r s t s x(t) = a(θ 0 )s(t)+a int (θ int )s int (t)+n (c) (t), r x(t) = [x 0 (t),...,x M 1 (t)] T s t t r t t r s2 s t t st t t s(t) s t s r s s int (t) s t r t t t r r s2 s r t d 1 t r r s n (c) (t) t s r s s s t t s s r ts t t t n (c) (t) = Ln(t) r n(t) t s s s s t r r 2 s2 tr 1 ss str t s tr 1 L C M M st s r t rr t t r tr 1 r t s s r L s t t t2 tr 1 t s s t t t s s rs t r a(θ 0 ) s t st r t r t r str t r a(θ 0 ) = [1,e jφ 0,e j2φ 0,...,e j(m 1)φ 0 ] T,
29 r θ 0 s t 3 t t j = 1 tr 1 A int (θ int ) s t st r tr 1 t t st r t rs t t r r s s e jφ 1 e jφ 2... e jφ d 1 A int (θ int ) = e j2φ 1 e j2φ 2... e j2φ d 1 C M d 1, e j(m 1)φ 1 e j(m 1)φ 2... e j(m 1)φ d 1 r t r rr s s r r s t t r θ int C d 1 1 t s r r r s t 2 t s t r q s s t 2 r t s 2s φ 0 = 2π sinθ 0 φ int = 2π sinθ int C d 1 1 r r 2 ss s t t t s s t t rr t t N 1 r s 2 tr s tt s2 s r t t t r s t t t r r s s t tr 1 S int (t) C N d 1 t s r r tt t r t X(t) = a(θ 0 )s T (t)+a int (θ int )S T int(t)+n (c) C M N, r X(t) = [x(t N +1),...,x(t)] N (c) = L N C M N tr 1 N C M N t s t N t s s s r M s s rs t s r s X t s N s s s s s r t M s s rs r s(t) C N 1 s t N t st s s r t s r s S int (t) C N d 1 s t N t st s s r t d 1 t r r s r s r t r s2 s X(t) t t s r s θ 0 r ss s 2 t r r t s s r t ŝ(t) s st t s(t) t t r r s r rr t r t r t 2 t s ss t t t s t t tr s tt r t r s t t t r r s t t t rt r rs t r t t r s str r t str 2 tr tr 1 s t rt t t str t a(θ 0 ) t s s t str t s r s t st r t r t s r s r t t st t ss r s t r
30 + - + r t r rst t r rt r t s d(t) = a H (θ 0 )x(t) s 1tr t 2 2 s t r a(θ 0 ) t t s t t s r s st r t r t t s s(t) s s s s r t s r s t s t t t d(t) t r d 1 s s r t t r r s s r t t t tt rt r tr 1 B C (M 1) M s t tb a(θ 0 ) = 0 s s t 1tr t t t r r s s x B (t) = B x(t) s q t 2 B s t s r s ts 2 2 A int (θ int )s int (t) ss t s t t t t tr 1 B r s 1 s2st t t r w s t s t r s t d(t) w H x B (t) 2 t t r r r r s r t r w = R 1 x B r xb d, r R xb r xb d r t rr t tr 1 x B (t) t r ss rr t t r t x B (t) d(t) r s t 2 t t t r s w gsc = a(θ 0 ) B H w, t s t t rt r rr s t a(θ 0 ) B r t st t rt t s2st t r t rt rr s t w s t t s t s r t r s t rr t r ss rr t t t r st t s s N s s ˆR 1 x B = 1 N BX(t)XH (t)b H, ˆr xb d = 1 N BX(t)d(t), r d(t) = [d(t N+1),...,d(t)] T t r t t r t s s t 2 s s t s r s r 2 st r s s ts
31 st q r s st q r s s s r t t t 1 t t t t rr t r ss rr t r r 2 st t t s s s t t t s x(t) ss s t r t t t s r s r t θ 0 r t d(n) = a H (θ 0 )x(t) s t s s ss s t r tr 1 B s t rt t t str t a(θ 0 ) t r w s t st s t t t r t s t t r r s y(t) t t s s tr t r t s r s d(t) adaptive algorithm r r y(t) s 2 y(n) = w H x B (n), r x B (n) = Bx(t) s s t rr r s e(t) s s 2 t t r t t st w w r s ŝ(t) = e(t) t t t e(t) s r r t r r s s t s2st s t t s t t w s t st st r t t st t J lms (w) = E { d(t) w H x B (t) 2} s t t r r t t rt w(t+1) = w(t)+µ lms w J lms (w) t µ lms t st s 3 r t s t st t s st t s ˆR xx = x(n)x H (n) ˆr dx = d(n)x(n) t t st st r t ˆ w J lms = 2Bx(t)x H (t)b H w 2Bd(t)x(t).
32 t st st r t s s rt t t r r t w(n+1) = w(n)+µ lms Bx(n)x H (n) ( a(θ 0 ) B H w ). st q r s r r t s r rt t s r r r s s r ts M r t s r s r r t r t r t s s s t adaptive algorithm r r r ss s s r t t t s r t 1 t t t t s ss s t r tr s r t tr 1 T C (M 1) r t t r r s s t2 r t r r r t r 2 r t r s r x(t) = e rr(t)x(t) s s st x(t) r t t s r e rr (t) = w H (t)x(t) s t t t s r t r t s t 2 t s s r t w(t) = a(θ 0 ) B H T(t)w(t) rr r ts q r t s r s t st t J cm (w) = E { w H x(t) ν 2}, r ν s st t s t t r t r s s t r w r r s t t r s t T(t) w(t) r t t t r ss s t 1 st t s J cm ( T(t),w(t) ) = E { [a(θ0 ) B H T(t)w(t)] H x(t) ν 2}, t w(t) t r r t r s 3 r r d r < M r r t r 2 s t t t r s tr t t r r s 3 t r t r s r s s t r r s q r s t 2 d s t st r s ts r t st t d r r 2 s r t s st st r t t r s st t t r s t t
33 P P T(t) w(t) s t r t r s r s t 2 T(t+1) = T(t)+µ T e cm(t) x B (t)w H (t), w(t+1) = w(t)+µ w e cm(t)x B (t), r e cm = 1 w(t) H x(t) s t rr r s t t t r s tr rr s s t t t r t s x B (t) = T H x B (t) t r t s tr s r t Pr s t s t s s t r t r t s r t r t t r t t r r s r 2 t st Pr t P t t t s s r s s s t s s s t P t r t t P s t t s rs t t s t r str t r s r r t s t r t s t t r r t s r s r t s t r s s t ts s r r s r r t r t t r st r s t r t r r t s r s ts rt rr 2 t t s rt r s 2 t t t r t r t s r s tr t s t t s t t s r s t r t st r q r t s r t P t t t r st Pr t P t s s r t s s r t rr t str t r t s s t r t st r q r s r s r s s t r t s s r r st st r t r r r q r s 2 r s s r s t r 2 t st 2 Pr t P st rt t t tr t st st r t t r st t t s rr t t r tr 1 r t t ts r s s r s 2 rst t s ss t t s s r r r s ts 2 t s s t t t s s rr t tr 1 s ˆR NN = 1 N sf N (c) (N (c) ) H, r N sf st s r t r s r s s N (c) s t r s s s ts tr 1 ˆR NN s r t s t t t s 2 s t
34 r r s t t ˆR NN = ˆL ˆL H, t t st t rr t t r tr 1 ˆL r r r t tr2 t r rt t ts t rr t s 2 s 2 t 2 t t 2 t rs t st t rr t t r tr 1 X (t) = ˆL 1 X(t), r X (t) s t r t tr 1 X(t) t r s s d s r r 1 t X (t) r s t t X [s] (t) r r t st t d t r r s r rr t r r s t s s t s rt t t t t t t s r r 1 t s t r t t t r r t st r r 2 t t r t s 2 t s s s s r s r t s t t st s t 2 t 2 t st t rr t t r tr 1 ˆL s s t t t t X [s] (t) = ˆL X [s] (t). s s s t t s2st r t P s t t s t r t t t r s t s r s ts t t t r x [s] (t) t t s rt t t t r t t t t r t r noisy samples prewhitening SVD low rank approximation dewhitening 4 adaptive GSC beamforming filter r r 2 st st r t r t r t s t s t t 2 t t st t s s t x [s] (t) s s t t t r t t t X [s] (t) = [x [s] (t N +1),,x [s] (t)] s s s t r t 2 s rt t t t r t r s s t t t s s t N s s ts
35 P P r r r s r t s P r s t s t tr s r t t s 2 t t t r str t r s r s r t r r 2s r t s t rr 2 t r r s r rr t r rr 2 t r t r r t s t s r t s rst t tr 1 T vit C M M s t s t t t r t t s r str t r v = [1,e jφ,...,e j(m 1)φ ] T t s s t t ˇv = T vit v = ( ) M 1 e jφ κ 1 κ 1 e jν e j(m 1)ν, r κ s 1 r t r t t r t s s r q t s rr t t t r s φ s t s ν t t r str t r s st r s t r s 2 t rt s s ( ) 2K sinφ ν = arctan, 1 K 2 +(1+K 2 ) cosφ r K = (κ+1)/(κ 1) r t s r t t t s r s t s r φ = 0 t t s s s t t s t r q s φ 0 φ int s s t t s r s r r t 2 t 2 t 2 t t s 2 P φ0 = diag([1,e jφ 0,...,e j(m 1)φ 0 ]) s t t t s r s rt 2 s r o s t s t r r t s t tr s r t r t t ˇx(t) = T vit P φ0 a(θ 0 )s(t)+t vit P φ0 A int (θ int )s int (t)+t vit P φ0 n (c) (t) = ǎ(θ 0 )s(t)+ǎ int (θ int )s int (t)+ň (c) (t). t r ǎ(θ 0 ) t tr 1 Ǎ int (θ int ) st r str t r ň (c) (t) s st r s t ts r r 2 t s t t ň (c) (t) = L n(t) L = T vit P φ0 L s s q t s t t t v t φ = 0 t t s r φ 0 2 s tt K < 1 t t 2 r 0 o s s t t r t s r r s t t r r s t t r t t s r s s r s st ts r s t t s r s t s 2 rt 2 r 2 t r r t s r t s st t t tr s r s rr t t P r t 2 s t
36 st t ˆL = T vit P φ0 ˆL. r s r 3 s t P r ss rst t s2 s s s t 2 P φ0 t noisy samples Phase shift VIT HASP 4 adaptive GSC beamforming filter r P r t t s r r t t r t t t s s r 2 t ss t r t P r ˆL s s ˆL r s t s t t ˇx [s] (t) t s s t t t t r t s t s t t t T vit r t r st Pr t P s t s t str t r t s r tr 1 s r r 2 rr t r ts r r str t r t r st r t P 2 t t 1 s s s r s 1 s r s s r rst s rt t t s2st r r t st t t s str t r t ts rr t t t s str t r rr t st t r t tr 1 st t t st st t t t s t 2 t r t tr 1 t r t t t r t s ss t t t s s rr t s r s 2 n (c) m+1(t) = ρ n m (t)+ 1 ρ 2 n m+1 (t), r 0 ρ < 1 st s r t s rr t t t s rr t
37 P P signal-free samples find prewhitening equation estimate equation parameters build prewhitening matrix D data whitening whitened data 4 r t r st r t r str t r s t rr t t r L s t ρ 1 ρ L (k) = ρ 2 ρ 1 ρ 2 1 ρ 2 0 ρ M 1 ρ M 2 1 ρ 2 ρ M 3 1 ρ ρ 2. r t rr t str t r t s rs r t (k) s s rt s t tr 1 D t t rr t t s t s r t s ss t t t s str t r t s s s r r t r t tr 1 s 2 D = J 2 ρ J 1, r J 2 J 1 r t s t tr s [0 (M 1) 1 I M 1 ] [I M 1 0 (M 1) 1 ] r t st M 1 s s rs t rst M 1 s s rs r s t t tr 1 t r s tr 1 t r t s s t t t s r r r rt t t t r 1 ρ 2 N = D N (c) = D L (k) N = J 2 L (k) N ρ L (k) J 1 = 1 ρ 2 J 2 N. q t s s t t t s s t 2 t t s ts r r t
38 s r t t t r str t r t st r t rs t r t r t s r s r r s r tr 1 J 2 t st s s t t s s r s s r s st r t t r ss r 2 t P t t t r s t 2 t P tr 1 s r s ts t r t t t t r x (t) = D x(t). s t st r t t s s t t r t 2 t t t r r r r s s 2 s t r t t t st t t 1 t s rr t tr s t s 2 t t s s t r t t 1 t2 t r t st s r t r q r s t t t t s s t t t s r s t t s t r rst t t s s s X m = X m diag(e m ), r X m = X(mN), e m = [e rr (N(m 1) + 1),...,e rr (mn)] H m t s t 1 r s t s r s t r t t st t s t r tr 1 1 t s x(t) ˆR x x = 1 L X m X H m, Ê { x } = 1 L X m 1 N, r 1 N s t r s t N s rt t st t s t t r t r t t st st r t r t T w ˆ T J cm = 2 L B X m ( em +1 L ) w H, ˆ w J cm = 2 L TH B X m ( em +1 N ). 2 r t rr r e m = e m +1 N rt r s
39 t r t t t r s T(t+1) = T(t)+µ T X B e m w H, w(t+1) = w(t)+µ w T H X B e m, r X B = B X m r t 1 r t s s t t s r t s r r t s r t 2 r s t t t t r t t t tr 1 s s t P P s t s t r s s t s t q r st t t t s s r t s t2 s t t 1 t2 2s s t s s t t t t 1 t s t ss r s s t s r r s t t s r s r r t t t t 1 t2 st s t t t t s s t t s r s r s s t s s r t2 r s r s t s t r t s t t s r r r s t r t s s s t 1 t2 r s t s r t s t s t r t r t s r t s r s tr t t q r t r r t s 2 s P tr 1 t r r t s r s t 2M 2 2M s t s t q r t 1 t2 s s s P P r t P r t s r s t tr 1 t t s r r q r s s t t t t t st s sts 4M 2 N +22N 3 t s t st t t t r s t s 2 2 r s i b t r t s r r s t t s r ss r i b /N s r s s s P P i b = N t t rs s r r st 2 t t t st t s s ts r t s t s t ts s s r r r 2 s tr t s s t t r2 l 2 r r s s r s r r t r t t s r s s t s 1 r t t t t r r s s r t r r s r
40 t t sts s r t st 4M 2 +4M 4 t t P t s P t s P t s P t s P t t P t s P t s i b t r t s r P t s i b t r t s r P t s N t r t s r P t s N t r t s r 8M 2 +4M +14Mr 10r +2 6M 2 +2M 4 8M 2 N +2dMN +22N 3 +2dM +4M 2 + 4M 4 8M 2 N +2dMN +22N 3 +2dM +4M 2 + 4M 4 10M 2 +2M +14Mr 10r +2 8M 2 N +22N 3 +2dMN +2dM +8M 2 + 4M +14Mr 10r +2 8M 2 +8Mr +4MN +2M 6r 2N 8M 2 N +22N 3 +2dMN +2dM +8M 2 + 4M +14Mr 10r +2 1 i b (8M 2 N +22N 3 +2dMN +2dM)+ i b N (8M2 +8Mr+4MN+2M 6r 2N) 1 i b (8M 2 N +22N 3 +2dMN +2dM)+ i b N (8M2 +8Mr+4MN+2M 6r 2N) 16M 2 +22N 2 +2dM +2dM/N +8Mr+ 4MN +2M 6r 2N 16M 2 +22N 2 +2dM +2dM/N +8Mr+ 4MN +2M 6r 2N s t t o o o o o o o r s t 2 r s t s s s r r t s t ss s s r t s tt r rr t 2 s t str t r s rr t s s t t ρ = 0.2 ρ = 0.9 t s t s r t s 1 t r r s s t t r = 10 t r s ts r t r t t r t sq r rr r RMSE(t) = E { s(t) ŝ(t) 2}. s r 3 s t t t s t s r s t s s t t s rt t t t 2 t r s s s t ss s s s t t r t s s r tt t r t r t r s ts r s t r s t r tr s r r s r t r t t t r s s r t r s s s t t st r t r s st t t rt r r
41 RMSE RMSE r r s r ts r r t s str t r 2 s ss Pr s r s s r s s r t t r r r r rs s t t r r r t st s 3 s s t t µ lms = r r t s r r s s 2 t t t r r s s r s s µ lms s t r t t r s t s t s s t s s r s s r st s 3 t t r s t s s t s s t t 3 t µ lms r r s s r s s t r t r r s ts r t r t s r s r 10 2 Batch GSC white noise LMS-GSC white noise LMS-GSC colored noise Proposed DP-LMS-GSC 10 1 Proposed HASP-LMS-GSC Proposed VIT-HASP-LMS-GSC 10 2 Batch GSC white noise LMS-GSC white noise LMS-GSC colored noise Proposed DP-LMS-GSC 10 1 Proposed HASP-LMS-GSC Proposed VIT-HASP-LMS-GSC samples samples r ρ = 0.2 r ρ = 0.9 r t t2 r t s rs s s s r N = 50 t t t r t r t r r t t s t t 2 r t t r s s t t t s t s rr t s t s rr t s s 2 s s r t r s P s t r r s t 2 t r r s t P s s r st 2 r r s t t st r r P s t rt r r t s r r r s t t s t s tt t t s t s t s s t st t r t r s t s2st s t t r s P r r s s r st r s t t t s r 2 t r s P r rr t
42 r t t t s t s t t t s s t r s s r t t t t rt s s s t st t w t s s r t t t rt t t s s r t t t rt t r s s r Pr s P t t t r st r t r s s r Pr s P t t r 2 st st r t r s s r Pr s P t t r r tr s r t s r 2 st st r t r s s r t s t t t rt r r t t s s r P P Pr s t s Pr s P Pr s P t t t rt r r t r s s r t r r t r 2 st st r t r s s r t r r t r r tr s r t s r 2 st st r t r s s r s r r t t s s r s r r t t r 2 st st r t r s s r s r r t t r r tr s r t s r 2 st st r t r s s r
43 RMSE RMSE RMSE str t r s t r t r r s tt r t t s r t s t s s r r t s t s r t r t s r r r st s 3 s r s t t µ w = µ T = s t st r s s r r s r t s r t µ w = /N µ T = /N r t P s s t st s 3 s r s t 2 r s t µ w = µ T = r s t t st t2 r t s s s t t t t s s s r r r r r t r s r s r r t r r s s r ss t2 t t s t r st r t s s t t t r t 2 r s r s P s s t t r r t t r t s P s s r t r r t P samples samples r ρ = 0.2 r ρ = 0.9 Batch GSC white noise RR-LMS-GSC white noise 10 0 RR-LMS-GSC colored noise Proposed HASP-RR-LMS-GSC Proposed VIT-RR-LMS-GSC 10-1 Proposed DP-RR-LMS-GSC Proposed HASP-BW-RR-SG-GSC Proposed VIT-HASP-BW-RR-SG-GSC samples r t t2 r t s rs s s s r N = 50 t r s s s t 2 t t t 1 t2 t r t s s P s t t s s s s t r t t t r s t s t 2 t t s s t t st r s s t s 3 s s t N = 50 t r t r t s t
44 RMSE RMSE s 2N t s r r s t t P ts s t t P t s t 2s rt t r r t s s t s st t t r t s t t t s s r st s t s t rst s s t P r s s 2 t t t r r t r r 1 t t t r s ts t r s t t t r s st st t samples 10-1 Proposed BW-RR-LMS-GSC white Proposed HASP-RR-LMS-GSC Proposed VIT-RR-LMS-GSC Proposed HASP-BW-RR-LMS-GSC Proposed VIT-HASP-BW-RR-LMS-GSC samples r ρ = 0.2 r ρ = 0.9 r r t2 r t s t r2 N r t t s s r s s r t t P t P P t P r s r t r r r s t r r s s r t ρ = 0.9 r t P s s r r t t t s r t t P s s r t t P r t t t t r s s 3 s s r t r r t s P s tt r t t P N > 80 t P s ts st r N > 50 r t t t t r s s 3 s s r t r r r t s s s r t s 3 2s rt t r t r r r t s s 2 r t P 2 r t s s s P r t s t st r r r s t t t r s s ts s s t t r s ts r r2 rr t ρ r r
45 Final RMSE Final RMSE Final RMSE Final RMSE Batch GSC white noise Proposed DP-LMS-GSC Proposed HASP-LMS-GSC Proposed VIT-HASP-LMS-GSC RRGSC colored noise Proposed DP-RR-LMS-GSC Proposed HASP-RR-SG-GSC Proposed VIT-RR-LMS-GSC Proposed HASP-BW-RR-SG-GSC Proposed VIT-HASP-BW-RR-SG-GSC N N r t2 r t s r t2 r t s r r r t s t r2 N ρ = 0.9 s s t t t r t r s P r s s 2 st t t t r s ρ r s P s r2 r s s t t r s ρ t st t r t t t t t s s r s s t r t r r r t s r t s s Batch GSC white noise LMS-GSC white noise LMS-GSC colored noise Proposed DP-LMS-GSC Proposed HASP-LMS-GSC ; r t2 r t s 10-1 RRGSC white noise RRGSC colored noise Proposed DP-RR-LMS-GSC Proposed HASP-RR-SG-GSC Proposed HASP-BW-RR-SG-GSC Proposed VIT-HASP-BW-RR-SG-GSC Proposed VIT-RR-LMS-GSC ; r t2 r t s r t r N = 600 s s ts t r2 ρ t t s s t P s t r s s s r t t s t t t t s s
46 r2 t s t r t t t r r t r 1t r r s r s s s t s t r t r s r s s t 2 t r r t r t s r t s s r s t P t P t P r t s r t r t t P P r t r r t r r s s r t s r s t P t st st r t t P s s t rr t str t r t s s t st st r t t s ts s r r r r t r t t s t r t t s r s st st r t r q r s t t t s r t r t t s s s r s r t ts ts t r 2 2 r ss r2 r t t st s r s s r s t t t t P r t s r r t r t s s tr s r s t r s t t s s t r t t s t t s r r t s r r s r r s s r s s r t s r s t r t r t t s t r 2 s s t r s t r s t r t t s s t s
47 P t 2 r r t s st r s 2 r t 2 r t s s t rr 2s str t r s t t 1 t t s t q s t rr 2 s s t s r t t r t r r ts s rr 2s t r tt t r t r r t 1 t t s str t r s t r r t r rr 2 ss r t r r s t t s t r t t 2 t r 3 t rr 2 r r t 2 t r t t t 1 t t t t s r str t r t t r s r t r s t t rr r t r s 2 r2 tt r r r t 1 t t t s t2 r r tr s t r t rr 2 s s r r r t t s r r t r P s t s t t t r ts str t r r t s r t r 3 s r s s s s str r 2 t str ts s t t t t rt t t r s str r r t s r t s r t r rr ts s r t 2 s t r 2 1 t t t s s r str t r s r s t s t t R s r s s r t r s2st 1 t2 2 t s r s r s t r t 2 r s t r s s t s t q t2 t r r r t r t r t r s R s R s t r s t s 1 s t s t s tr t t s s t t t s r s t ss r t t r s ts t r s R r t s rr 2 r ss t s r s ts r
48 P s t 2 s r2 s t t s r t r s i = [s i (1),...,s i (N)] T t t tr s tt s2 s s i (t) ss t t t i t s r s s2 s r t t s R s rr 2 r r t2 str t r r t r rr 2 s s s t r t r t s s t t 1t s r r s rr 2s r t φ i 3 t θ i t r t rr t i t s r r r t r t i t s r r s t rr 2 t 3 t θ i t φ i s t t r t s 2s a (m 1,m 2 ) i = e j(m 1ϕ (1) i +m 2 ϕ (2) i ), ϕ (1) i = x cos(θ i )cos(φ i ), ϕ (2) i = y sin(θ i )cos(φ i ), r m 1 m 2 r t rr s t s t s t x y r t s r s t 2 x y r t t r t s s s s r s 3 M 1 M 2 r r t tr 1 A i C M 1 M 2 t s s 3 t r s d s r s t r s r r s t 2 d 1 X(t) = A i s i (t)+v(t) C M 1 M 2, i=0 r V(t) t s 3 r 1 t ss s s s t ss s2st s r q t 2 s t t r 3 r X(t) x(t) = vec(x(t)),
49 P s t t s2st r r t s s2st s tr s r t s t r 3 t t r t t t d st r tr s A i st t rd s t r st r t s r A C M 1 M 2 d s s t s s2 s r rt r r t tr 1 S = [s 0,...,s d 1 ] T C d N r s t 1t t t s r X = A 3 S T +V C M 1 M 2 N, r V s t M 1 M 2 N s t s r t s r str t s t r ss r t t r t s r URA r s t r t t s r r t t t rr 2 st s r s s q t s 2 t t t st r tr 1 A i r 2 t t r r t t t t rs r q t t s s r t t s s r str t r s A i = a i (ϕ (1) ) a i (ϕ (2) ) r a i (ϕ (1) ) = [a (0,0) i,...,a (M 1 1,0) i ] a i (ϕ (2) ) = [a (0,0) i,...,a (0,M 2 1) i ] r t t rs r 2 r2 s 3 r t t rs r 3 t r t s t t s 1t t rr 2s t R s s A i = a i (ϕ (1) ) a i (ϕ (2) )... a i (ϕ (R) ) t r t s r q t rt r 1t t X = A R+1 S T +V C M 1 M 2... M R N, r t st r t s r A s s 3 M 1 M 2... M R d P s t t t t s t rr 2s R 3 t r t s s t s s t t t t ss t t t s t rr 2 s s s t s st s s t r r t t s t
50 P t t t s rt t s t ss r s t r r ss r R s s rst t r rt r t s d(t) = a H (ϕ (1) 0,...,ϕ (R) 0 )x(t) s 1tr t 2 2 s t r a(ϕ (1) 0,...,ϕ (R) 0 ) t t s t t s r s st r t r t t s s 0 (t) s s s s r t s r s t s t t t d(t) t r d 1 s s r s r t r r s 2s ϕ (1) 0 r t r t st t r t rr s θ 0 φ 0 r st t t t r r s r rr t t tt rt r tr 1 B C (M 1M 2...M R 1) M 1 M 2...M R s t t B a(ϕ (1) 0,...,ϕ (R) 0 ) = 0 s s t 1tr t t t r r s s x B = B x(t) s2st t t r w s t s t r s t d(t) w H x B (t) 2 t t r r r r s r t r w = R 1 x B r xb d, r R xb r xb d r t rr t tr 1 x B (t) t r ss rr t t r t x B (t) d(t) r s t 2 t t t r s w gsc = a(ϕ (1) 0,ϕ (2) 0,...,ϕ (R) 0 ) B H w, t s t r rt r rr s s t t st t rt t s2st t tt rt s t r r t r t s t r s t q t s t r st t r t s s t st t R xb 2 t r N s s ts s s q t t s t (R+1) t t t s r X s vec ( X(:,:,...,1) ) T vec ( X(:,:,...,2) ) T [X] (R+1) = vec ( X(:,:,...,N) ) CN M 1M 2...M R. T
51 P P R t st t s t s ˆR xb = 1 N B[X]H (R+1)[X] (R+1) B H, ˆr xb d = 1 N B[X]T (R+1)d, r d = [d(1),d(2),...,d(n)] T Pr s R s ss s s t t r 3 r x(t) X t s r ss t s s ts t s str t r t t t t s r str t r t t 23 t s X s s t t t r t t s s r s 3 tr 1 rs s t rt 2 r s t r s s t s t s 23 t t t st s r [X] (1) = [X(:,1,1),..,X(:,1,N),X(:,2,1),...,X(:,M 2,N)], [X] (2) = [X(1,:,1),..,X(M 1,:,1),X(2,:,2),...,X(M 1,:,N)]. t s t s 2s r r s r t t r r r r t s s t s r t 2 t R ts t r s t s ss s t r s s ts s rt 2 r s t r NM r st N s s ts t ss s t t R s t s t R+1 s t t s r X t t t t t s r str t r t t r s s t R r t t t s t r 1-D GSC 1-D GSC 1-D GSC r r t R r t
52 P rst t t s r X s t ts R+1 s R ss s s 1 t r s t t r t s [X] (r) 1 2 k (r) s tr sts t t t t r 2 t s s r s r s t t t s2st s 2 t r s t s d (r) (k r ) [w (r) ] H x (r) B (k r) 2 r r t s w (r) = [R (r) ] 1 r (r), r x (r) B (k(r) ) = B (r) [X] (r) (:,k r ) R (r) s t rr t tr 1 x (r) B (k(r) ) r (r) s t r ss rr t t r t x (r) B (k(r) ) d (r) (k r ) r 2 s t d (r) (k r ) s t t t t 2 s t r rr s t t s r s 1tr t r t r t t t t rs r t s s w (r) gsc = a(ϕ (r) 0 ) [B (r) ] H w (r). st t t rr t tr s t r ss rr t t rs r t t r t s t s [X] (r) r t t t s r s 1 t 2 t r t tr s s t s ˆR (r) = 1 N B(r) [X] (r) [X] H (r)[b (r) ] H, ˆr (r) = 1 N B(r) [X] (r) [d (r) ]. t R t rs r t t 2 s t r t t r t t M 1 M 2...M R s r rr 2 s s r t t r t s t r r r t t st t t rt s r s w rd = a(ϕ (1) 0 ) a(ϕ (2) 0 ) a(ϕ (R) 0 ) [B (1) ] H w (1) [B (2) ] H w (2) [B (R) ] H w (R). s s rt 2 r s t r s s t s s s t t t r [ˆR (r) ] 1ˆr (r) t t s r t 2 s s t ss t2 r t t s r rs t s t2 t s r t t t s t r s t t t s t t s str t r t 1 t2 tr 1 rs s ss r q r s t rs tr 1 t s 3 M 1 M 2...M R M 1 M 2...M R 2 1 t t t s t2 t t t R r q r s R tr 1 rs s s 3 M r M r
53 r r t r r r s2 st t t rr 2 s2st s tr 1 rs r t r t2 2 ss r2 t rr 2 s2st t r s s ts s s r s t t r t s t r tr 1 st t t s t t r t t rs t r tr 1 s s s r tt r t r t t r q t2 t s t s t 2 st t r t t ts t t t r tr 1 st t ss s r s s s t s str r t t s r s s ts r s t t t t s 2 rr t tr 1 s r t 2 s tr 1 t t rr t tr 1 R L = R+I l, r I s t t t2 tr 1 R s t rr t tr 1 l s t r s t s r 2 t s r s r r2 r t 23 t t t s t s t r s s t t t r s t t r s P(θ,φ) = w H gsca(θ,φ). t t s s t r r s s s s r Elevation Azimuth Elevation Azimuth t r s s t t t r s s t l = 0.8 r t t s t r s s t t r r t s s t t t t r s s r r r t t r r str t s s ts P(θ,φ) = 1 t s r s r t r t r r t r s t r r s s s t r t s r s r s r s t t r s q t2 r r t 1 s t t t s r s r t
54 P t s t r s t r s s P(θ, φ) t r s r t s t r r s s s s 1 t t 1 t t s r s r t r2 r t t r r s r t s r s r s s t s s r 2 r t s r s r t s t rr t tr 1 t s t r t 2 t t s2st s t2 t t t r r s s t t s s t s r s q t2 s t s 1 t t s t r r s s s s r t t t s r r r t s t q s t t s s ts r t s t s t s s s P s s r r t rr t s s t t r2 r r s rt t t s t s r s r t r r rs t (θ i,φ i ) {(0 o,45 o );( 75 o,55 o );(35 o,80 o );( 20 o,10 o ); (80 o,35 o )} s r s (θ 0,φ 0 ) s s r r r ϕ (1) 0 ϕ (2) 0 r t t t t ss R r s s s t s t s r t s s t t r 2 t r t s t s t t r r s r t r rr t s s t t r2 r s t s SINR = w H rd [A] (3)(:,1)[A] H (3) (:,1)w rd w H rd ([A] (3)(:,2 : d)[a] H (3) (:,2 : d)+σ2 vi)w rd, r σv 2 s t s r s t ˆR xb ˆR (r) t l = 0.8 r t l = 0.8 r R rr t tr 1 t t r t ss R s s r t r2 r s s N ss s s r s N t R s t N = 20 t s s r s r s 2 s t t t s s s 1 t N = 100 t s r r t r s t s s r r s s t t t s tt r r t R t s r2 r t t s t r t t r s t t r s s r s t t r s s s 1 t N = 50 s s t s 3 t rr 2 s r t s s t s t M 1 = M 2 r s ts r s r r t s s t t ss st rts t s tt s r 2 t s t r t s s r s r t R s t s s t t r w rd r t s r t 2 t r r s r s t t t M r 1 r s
55 SINR SINR (db) Classical GSC optimal Classical GSC 2-D GSC N r t t r 2 t ss r s r r2 r t r s s ts N Classical GSC 2D-GSC SNR r t t r 2 t ss r s r r2 s s t t t r t r r 2 tt t s t t r r s r s M r > d s s r r r M 1 = M 2 5 t R s r r M 1 = M 2 > 5 t R r s r t r 2 t t t t r t t s s t s s r s t s r s t s s r s r t s r r 2 s 2 r r t s t2 s r t s r t s t r r s ts r t r
56 SINR (db) P Classical GSC 2D-GSC M 1,M 2 r t t r 2 t ss r s r r2 rr 2 s 3 t s s t s r t q Classical GSC 2D-GSC Classical GSC plus unfolding 2D-GSC plus unfolding 1.2 time (s) N r t t t rs s N r t s r s s t t t t s r t t t s r t s t r R s s t t t st r t t ss s r t t t s s r r r 2 2 t r r t R s s t t t r t t ss
57 r2 s t r t s rr 2 s s t t r rs r s t ss t2 s t s s s r s s s t r s s t t t t s t s t2 r r t t r r r rs s 2 s R s s r r t t s r s 3 tr 1 rs s r t t 1 t2 t t s2st t t s t R s s r s t s s s s R s t t t t t s t2 t s t r s ts s t t r2 t r s s r t ts r s ts s r s s s t 2 t r t s s s r t t r s r s s t t r t t t t t r r s r t r t s s s r t t r s r s s s r ss s t R s 1t t ts t r r 1 t2 tr t2 t t r r
58 P
59 P P r q t 2 r rs ss rr s s r t t t r s t t rt st 1 t t s r r q 2 s ts r q r r r r r t r t s2st s s s t r s s 2 s2st s ss 2 s t s s t t t ss s t r r r r r r t t s2st s r r t r s t r t r t t t t t r q 2 s ts t r s r t t 2s t s r s r s 2s t s t 2s r r s t 2 t t s s t s s r t s t q s s r rr s s r t s t r r s r s r r r q 2 r t r rs s s r r s r s t t s s s s r r r s t s st t s 1t r s s s q s r s r t t q s r st t s 1t r s s s t r r s s r r s s t t P t s r s t s r r t r r 1 ts t t P r rs st sq r s tr t q r r t t 2 tr t P s t r P r rs st sq r s tr t q r s s s t 1 t t r t s r r q r t s r s t st t r2 t s t r t rr t t s r s t 2 r s t t
60 P P t P s t r t s r s s t 2 2 r rs s rs t st t st r tr 1 s r s t sr t r t s rs t t s r t t 2 s sq r rr r s r t r s 2 r st r r str t s s r t t r s st t s q t t rr 2s s s t s t rs t r s t URA ULA Interference r r t s s s t t t SOI t s t r st t t r r s s t B s t r r t s rr r r t t r r t 2s r r t r t r r t r s t t m t t r tt s s t 2 s s d 1 x m (t) = s i (t τ i,m )+v m (t), i=0 r τ i,m s t r t 2 t s r i t t m v m (t) s t ss t s r s s r s t r rs t
61 r s s r t t rs r r s t r 2s d 1 x m (t) = s i (t) δ(t τ i,m )+v m (t), i=0 r t s t t r t r δ(t = 0) = 1 δ(t 0) = 0 r r t r t t s t rs s t t t 2 s s 2 t t t δ(t τ) st t t t 2 s s t t r s r rs t s t st t ŝ i (t) r s i (t) s r t t t ts y i (t) t r r rr s r r t r t 2 s s 2 t r r s 2 r s r q 2 t s s t s r s s B = [ω min,ω max ] r q s t B s t t s r t 2 t t s t t s t r 1 t t t 2 s r t t r r ss t r s s t 2 s s s r r 2 t m r s r s t r 2 t r t L t s r s s r 2 r ts w m,l r l = 0,...,L 1 M = 0,...,M 1 r t s M t s r s s t rs t L t t ts t r str t t r s s tt t y i (t) = M 1 m=0 L 1 x m (t lt s ) w m,l, l=0
62 P P r T s s t s r t M s t r t s L s t t t t t 2 r t t t r s tr 1 s tr s x 0 (t) x 0 (t T s )... x 0 (t (L 1)T s ) x 1 (t) x 1 (t T s )... x 1 (t (L 1)T s ) X(t) = x 1 (t) x 2 (t T s )... x 2 (t (L 1)T s ) C M J. x M 1 (t) x M 1 (t T s )... x M 1 (t (J 1)T s ) t t t t q t s r t r r s t r 2 st s s t t s t 2 s s t r t t s s 2 r r t r st r t r x(t) = vec(x(t)) r t r vec( ) t r 3 s ts r t 2 st ts s s r r t r w i t t r ts w m,l s r t t r t t t r q t y i (t) = w H i x(t). r t r q 2 r r s t t q t r r tt 2 r r t r t 2s s r t s 2 r r q 2 d 1 X m,l (ω) = a m,l (p i,ω)s i (ω)+v m (ω), i=0 r ω s t r r q 2 t rr 2 s t t r t r t s2st t i t s r s t s t p i a m,l (p i,ω) r ts t st r t r s a(p i,ω) = vec ( A(p i,ω) ) C ML 1, e jωτ i,0 e jω(τ i,0+t s)... e jω(τ i,0+(l 1)T s) e A(p i,ω) = jωτ i,1 e jω(τ i,1+t s)... e jω(τ i,1+(l 1)T s) CM L. e jωτ i,m 1 e jω(τ i,m 1+T s)... e jω(τ i,m 1+(L 1)T s) r a(p i,ω) s t t s θ i st t t r s r t p i s 2 t t ωτ m = m x λ 1 2πsinθ r r 3 t t tr r q 2 2 s s t r 3 r q 2 Ω = ωt s t
63 s st t t µ = x /(ct s ) t r r t q t s 1 e jω... e jω(j 1) e A(θ i,ω) = jµωsinθ i e jω(µsinθ i+1)... e jω(µsinθ i+(l 1)) CM L. e jµωsinθ i(m 1) e jµω(sinθ i(m 1)+1)... e jµω(sinθ i(m 1)+(L 1)) t q t s r t r t r t r t s t s r s t 2 r s r t t t t s t r q 2 r s s t s t r w P(θ,ω) = w H a(θ,ω). s 1 t s s r t r s s t t r w = 1[ ] T r r M = 4 L = 5 2 t 2q st t r T s = 0.5T min x = 0.5λ min r T min s t r t st r q 2 t λ min ts t t s µ = 1 r r 2 s s t r q 2 2 r t r q 2 r s s w st r t 0 t r r r t r s t q r t str t r q 2 r t r rs
64 P P t s rs r r r s r r q 2 r t r r s t s s t t r rst r s t t s s t s rs s r t 1t s s r r s s r t t t s rst s r t r r tr s r s r s s t s s t r r w(x, t) r P(θ,ω) = w(x,t)e jω1 c sinθ x e jωt dxdt, r c s t s x r r s ts s s r t r 1 s s s t s t r w(x,t) 2 r q 2 r t r s s P(θ,ω) t ts s rs r r tr s r t t s r t 2 ts r ss t t 2 t s st t t s ω 1 = ωc 1 sinθ ω 2 = ω r r t t s t t r s tr t t s r t t t rs s r r tr s r P(ω 1,ω 2 ) = w(x,t)e jω 1x e jω 2t dxdt t q t2 r r ω 1 = ω 2 c 1 sinθ t s s 2 r t t 1 c ω 1 ω 2 1 c. t t s s t t 1 r q 2 ω max 2 rt r t t s t t r s tr t t r ω 2 ω max s t 2 ω s t t s t t t r s s s r q 2 t s t t s tr 2s t r t P(ω 1,ω 2 ) = P(cω 1 /ω 2 ) s r s ts cω 1 /ω 2 = sinθ t s ss rt t t t s t t r s tr s 2 t θ r t s r t s t r q 2 s r 2 t r 3 r q 2 Ω = ωt s t t r 2 s r t s s P(θ,Ω) = w[m,n]e jωmµsinθ e jωn, m= n=
65 r m s t t 1 n s t s r t t 1 t r ts r s t t t t s r t t t s r s s st t t s r r Ω 1 = Ωµsinθ Ω 2 = Ω t t s r t s t t r r s s P(Ω 1,Ω 2 ) = w[m,n]e jω1m e jω2n. m= n= 2 s x = 0.5λ min T s = 0.5T min t s t t µ = 1 Ω max = π r r t r s t 1 (Ω 1 /Ω 2 ) 1 s r 1 st s t r r 1 st t s t t r r s s s r s t t r r s s t r r s F(Ω 1 /Ω 2 ) Ω 1 /Ω 2 1, P(Ω 1,Ω 2 ) = α(ω 1,Ω 2 ) Ω 1 /Ω 2 > 1, α(0,0) Ω 1 = Ω 2 = 0. r F(Ω 1 /Ω 2 ) s t rr 2 s t r s r t t2 t r F(Ω 1 /Ω 2 ) = 1 M prot M prot/2 m= M prot/2 e jmπsinθ, r s t r r t r t t st r t r s t r r t r t t s st r t r α(ω 1,Ω 2 ) s ts t r 1 st P(Ω 1,Ω 2 ) t s r tr r 2 t t t Ω 1 = Ω 2 = 0 t t
66 Magnitude response [db] P P s s 2 r s t rr s s t r t t r r t s t t 3 r r s t t r r s t s rs s r t r r tr s r P(Ω 1,Ω 2 ) s Ω 1,Ω 2 s t t r r s α(ω 1,Ω 2 ) ts t r 1 st s 1 t IDFT2(P(Ω 1,Ω 2 )) s s t r M = 10 L = 20 s t α(ω 1,Ω 2 ) = 0 r r ts w[m,n] r t tr s t tr t t r s t t t t s r M L s 3 t r ss t ts r r 2 s t t r w t r s s s t s q t r s t s s r /: DOA 3 [deg] r t r q 2 r s s r t s r t t t r q 2 t s t r t Ω = 0.4π r r r t ts r s r s s rt rr 2 st t s 1t r s 2 s t ts t t s s s r t r s t t r r s s 2 r t s t t s t r s s s s t t t r s rt rr 2 t r t r q 2 2 r r t r st s s r t t t r t s s r s rt rr 2 t st t s 1t r s st t s r t t s t t r s s s s
67 w[m, n] w[m, n] m n n m r t r s t t r w[m,n] r r s r s t sin(θ) = 0 s t sin(θ) = 0.4 r s s s s s t r q 2 r t r t sin(θ) = 0.4 s st t sin(θ) = 0 t t sin(θ) = 0 s r 2 t sin(θ) = 0.4 r t s s t r q 2 r s s r t r t r q s r s t sinθ = 0 r s s t r q 2 r s s r t r t r q s r s t sinθ = 0.4 t s s t rr 2 r t s 1 t s s r s r s t r s s s r r t 2 r q 2
68 P P r t r t s s tr t t t r s st t s s t s r s s x fib:0 (t) = P 0,0 s 0 (t)+p 1,0 s 1 (t), x fib:1 (t) = P 0,1 s 0 (t)+p 1,1 s 1 (t), r x fib:k (t) s t k t t t s r 3 r K s r r t t tr 1 r x fib (t) = P s(t) C K 1, r P s t tr 1 t t ts P i,k s s r2 s r t s 2 rr s r s s s t t t 2s s 1t r r r rr r t s 2 t tt r t s r s s r rr r t r s r t s r q 2 r tr s r t Bank of FIBs FIB 1 Virtual array FIB 2 FIB 3 adaptive algorithm FIB r r t r s s s rr t r t r t t 1 r s t t s st ss r s K max = M/3 t t q t s t t r s s s
69 Magnitude response [db] r r t 2 t str t t s t r s r t t s rt t s r s r s t t r s s s s r s t t 1 t2 t t t r r t t s s t t t 1 r r s r t r t t2 t r s M prot = min{ M/3, L/3 } s t t r t r s s s s sts s t t r q 2 1 s t k t 2 2πk K 2πk j s s t t t r q 2 2 t ts e K s 3 K 2 t s t r s t s t t r t t2 t r r 2 F(Ω 1 /Ω 2 ) = 1 M prot M prot/2 m= M prot/2 e jmπ(sinθ sinθ 0), r θ 0 s t r t t t s s t s t t t k t r q 2 r t r t t2 t r s F k (Ω 1 /Ω 2 ) = 1 M prot M prot/2 m= M prot/2 e jmπsinθ e jm2πk K, s 1 K = 5 s s t t s r tt s t s 2 r r s r q 2 s t r r sin( 3) r s s s t r q 2 s t r t r
70 P P s r s t r t r tr 1 st t t s s t t P t s r s t s r t t q t st t st r tr s s s s r s t t P s r s t r t s r s t s t s r 2 rs r s r 1 t st s s t s s t P s t t r r s t s s t s s s t 2 t s2 tr s r t s t P r P s r d P s t s s t t r r ts t rs r t s rs s s X = d r=1 f (1) r f (2) r f (3) r, r f (l) r C M l 1 r ss s s str t r = r str t P s t s r t r 2 rr 2 t s s rt t t t t r t t s r s t r t 2 r t t t r tr 1 r ts 1 r s d max = min{m 1,M 2 } r t s r 2 r s st t s t t d max min{m 1,M 2,M 3 } t s rr 2 s r ss t s s r 2 r r t r s r ss t tr s r t s s 2 st t t r s 2 t r t t
71 P P s t s r r t t t X = I 3 1 F (1) 2 F (2) 3 F (3) C M 1 M 2 M 3, r I 3 s s t t2 t s r s 3 r F (l) r t t r tr s t r t rs ts s t r s t t t t s r s r ss s ts s st tr s rs X = [F (1) diag([f (3) ] 1,: ) F (2) 3 3 F (1) diag([f (3) ] M3,:), F (2) ] r [F (3) ] m,: r t r s F (3) 3 t s t t r t r s t r t st q r s r t r tr 1 st t tr2 t r2 s r t st t t t r tr s t P s t s t s t t r t st sq r s r t ts s t r t t s t s r t tr 1 r s s 2 t st sq r s s t s t r r r r t s r t s tr s [X] (1) = F (1) (F (2) F (3) ) T C M 1 M 2 M 3, [X] (2) = F (2) (F (3) F (1) ) T C M 2 M 3 M 1, [X] (3) = F (3) (F (1) F (2) ) T C M 3 M 1 M 2, r s t tr r t r s r r r t t r r t 3 t t t rs t t st sq r s s t r t r t r t r F (1) = [X] (1) [(F (2) F (3) ) T ] +, F (2) = [X] (2) [(F (3) F (1) ) T ] +, F (3) = [X] (3) [(F (1) F (2) ) T ] +. t s t r t r t 2 t t r s t ǫ s r X I 3 1 F (1) 2 F (2) 3 F (3) 2 H ǫ, r 2 H s t r r r q t t r s r t s q t t r s r 2 t s t r t s t s tr s s r r 2 s t t s
72 P P r s ts [X] T (1) = (F(1) F (3) ) [F (2) ] T C M 1 M 3 M 2, [X] T (2) = (F(2) F (1) ) [F (3) ] T C M 2 M 1 M 3, [X] T (3) = (F(3) F (2) ) [F (1) ] T C M 3 M 2 M 1, r [ ] (r) s s t r r s t t r r 2 r t r t s r s s 2 s t r t tr r t s t P s t s 1 t t s r t t s t 2 rr t tr s t s ss t R(τ) = 1 N X fib(t)x H fib(t τ) C K K, R(τ) = P R s (τ) P H. r X fib (t) = [x fib (t) x fib (t 1)... x fib (t N +1)] R s (τ) s t s t 2 rr t tr 1 t s r s s t s t t t s r s s r t s s r t rr t s t J t 2 rr t s r tt R(τ 1 ) = P R s (τ 1 ) P H, R(τ 2 ) = P R s (τ 2 ) P H, R(τ J ) = P R s (τ J ) P H. 2 s r t t R s (τ) s r 1 t 2 r t t t P 2 s r F (1) = P,F (2) = P H F (3) = C r [C] j,: = diag ( R s (τ j ) ) q t r tt t s r r s R = I 1 P 2 P H 3 C C K K J. r t s rr t t r t R s t t R noisy = R + V r V s s t 2 s t r t s r r t r 1 t s t t r tr s
73 P P P Pr s t r r r r s t r s t s s t s s t P r rs st sq r s tr r t r s 2 r s r t s s t r st t r2 rr s s r r t r t s r s s st t r2 2 t t r t ss 1 r s r s r s t s r r t t s t t s r t t2 t r s r s s t s t s t t rr t t s r r r2 2 q r s s t s t r t s s t r rs t r s r r r t st t t t s r t rs s t t t r t t s r s t t t s s s t t t r r 2 t t s s t r r 2 r rs 2 r q t t r r 2 s r r t t s t r rs st sq r s r t s t t t t r s t s RLST update updated factors r t t s t s s r t s r t s s t rr t t s r r s t t s t s s r s r r st t r2 t r s r t s t rr t s r r2 t r t s r t rr t t s r s r t 2 st t r2 r s 2 r2 r r t s s r t r t t 2 rr t s 1tr t rst r r s s r t r s s t st rr t tr s 2 t r t t t st t s 1t r s s r s r t t t t t t ss s 2 r t J t 2 t r r t t s r r r s t s s
74 P P r r t s t rst r s 2 t t rr 2 t t s 1 t rt rr 2 t st t s 1t r s x fib (t) s t r t t s s r 3 s rr 2 s x(t) r st t r2 s s t P r t s r t 2 2 s r x fib (t) s ts s t r t s r t P r s t t t r r t t t s s t s r t J t rr t tr s r t t r r r2 s s t x(t+1) R(t+1,τ 1 ) = λ r R(t,τ 1 )+x(t)x H (t τ 1 ), R(t+1,τ 2 ) = λ r R(t,τ 2 )+x(t)x H (t τ 2 ), R(t+1,τ J ) = λ r R(t,τ J )+x(t)x H (t τ J ), r λ r s r tt t r r t rr t tr s st t r t t s r s t s s rr t tr 1 t t t s r r r t st t s t P rr t tr 1 s 2 2 t t t s r ts r t tr 1 s r s t q t s t s 1 t rr t t s r s t s r ss s str t r R(t 1) = [R(t J,τ J ) 2 R(t J +1,τ 1 ) 2 2 R(t 1,τ J 1 )], R(t) = [R(t J +1,τ 1 ) 2 R(t J +2,τ 2 ) 2 2 R(t,τ J )], R(t+1) = [R(t J +2,τ 2 ) 2 R(t J +3,τ 3 ) 2 2 R(t+1,τ 1 )], r R(t j,τ j ) s s 3 K 1 K t s rt t t t t rst t 2 s t 1 t τ J t s 2 rt t t t t t 1t s s t t 2 s ts 2 2 t t P r t s r s t 2 t s s s t s t t t r t rst t tr s s r r 2 st t t s r R s t [R(t)] T (1) = ( F (1) (t) F (3) (t) ) [F (2) (t)] T. t rs F (1) (t) F (3) (t) s 2 r r s t t tr s s s 2 r2 H(t) = F (1) (t) F (3) (t) 2 s r rt r r t s t s
75 P P P select remove append r Pr ss s t r s t t P t rr t t s r t r R(t+J 1) s t t r ss s r st rt t t s r s t t t rr t tr 1 r t rst t 2 τ 1 [R(t)] T (1) r 23 t s r t t [ [[R(t)] ] [R(t+1)] T (1) = T (1) ]:, 1 r(t+1), r [ ] :, 1 rr s s t t r t r t rst tr 1 r(t+1) = vec ( R(t+1,τ j ) ) τ j s s 2 2 r {τ 1,τ 2,...,τ J } r t st st t r t r st s H(t) t s t t [ [[F [F (2) (t+1)] T (2) (t)] T] ] :, 1 [f(2) (t+1)] T C J d. t H(t) t tr s s t t r [F (2) (t)] st t s t st sq r s s t [f (2) (t+1)] T s st t t tr 1 H(t+1) s st t t st sq r s s t t s [f (2) (t+1)] T = H + (t)r(t+1), H(t+1) = [R(t+1)] T (1) [F(2) (t+1)] T+.
76 P P t 1t rt t s s r rs t t r H(t) 2 r t t st sq r s st t r tr t t s t t J H,f (2) = J r(u+1) H(t+1)[f (2) (u+j)] T 2 F, j=1 r u = t+1 J t r r t r tt t r s s s t s r s r r s 2 t st rr t s tr s r t r st t r r r st t s r s s q t t s r r t r r r t 3 t st t t r t t r s t t H(t + 1) s t! t r s t s s r J H,f (2) = 0 H J H,f (2) = 2 J j=1 ( r(j) H(t+1)[f (2) (u+j)] T) [f (2) (u+j)]! = 0, ( J )( J ) 1. H(t+1) = r(u+j)[f (2) (u+j)] [f (2) (u+j)] T [f (2) (u+j)] j=1 t s r t s t t s r t s s t r rs 2 s j=1 H p (t+1) = H p (t)+r(t+1)[f (2) (t+1)] r(u)[f (2) (u)], H q (t+1) = H q (t)+[f (2) (t+1)] T [f (2) (t+1)] [f (2) (u)] T [f (2) (u)], t r r H(t+1) t r tt s H(t+1) = H p (t+1)h 1 q (t+1). t r t t st tr 1 rs r s s r r t st r tr 1 rs s r tt H(t) s t t s s t t [f (2) (t)] T 2 s [f (2) (t+1)] T = H q (t+1)h + p(t+1)r(t+1), r rs r r s s r t t s t t r t s rs H + p(t + 1) r t t r rs t t 2 tr 1 rs r tr 1 A C M M A 1 (t+1) = (A 1 (t)+bc H ) 1 = A 1 (t)+ A 1 (t)bc H A 1 (t) 1+c H A 1 (t)b
77 P P P 2 t s rs t 2 t t rs F (1) (t+1) F (3) (t+1) t s r H(t+1) 2 23 t tr r t t t r s H(t+1) t s t t ts r t s f r (1) (t+1) f r (3) (t+1) = vec ( f r (1) (t+1)[f r (3) (t+1))] T) r f r ( ) (t + 1) s s t r t F ( ) (t + 1) 2 t r t r tr 1 H r (t + 1) = unvec ( ) [H(t + 1)] :,r r s r r r t s r t f r (1) (t+1) f r (3) (t+1) r H(t+1) s t t t r t t t r t s s f (1) r (t+1) = H T r(t+1)[f (3) r (t)], f (3) r (t+1) = H r(t+1)f r (1) (t+1). H r (t+1) 2 F t t r t st r = 1,...,d t t r tr s F (1) (t+1) F (3) (t+1) r st t t rr s t t r s t s r t s t t ˆP = F (1),F (2) = C P ˆH = F (1) tr 1 P t s ts r s r t r r s r t r s t r r r t t r s ˆP s t s ts s rs r W = ˆP + r t t 1tr 1 t2 t s rt t 2 t rs P s t r t s r s 2 s s r s s t s t 2 t r t t sr r t t t t t st t r t s W(t+1) = W(t) ( 2I K ˆP(t+1)W(t) ), s rs r tr 1 A C M N,M N A + (t+1) = (A + (t)+cd H ) + = A + (t)+ A+ (t)h H u H β β pq H, σ r β = 1 + d H A + (t)c h = d H A + u = ( I M A(t)A + (t) ) c p = ( u 2 /β A + (t)h H + k ) k = A + (t)c q H = ( h 2 /β u H +h ) σ = h 2 u 2 + β 2 sr t r t t st t s t s rs A C M N t r r t s r s  + (0) = αa H r α s s t t r  + (t+1) = Â+ (t) ( 2I M AÂ+ (t) ), 0 < α < 2 max [(A H A)] i,j. i j t s st t A + s r 2 t s t t 3 t r t
78 P P r I K s t t t2 tr 1 s 3 K W(0) t 3 t st t P + 2 t t s rs r t t 3 t t P r r s t r t s t t t t 2 s t 2 t r r ˆP(t+1) W(t+1) = W(t) ( 2I K ˆP(t+1) t W(t) ), r t s r s s ˆP(t+1) t = λ tˆp(t+1)+(1 λt )ˆP(t) r 0 < λ t 1 s t s t s t r t 2 r r t r t r r r t t t 2 t 2 2 rr t r r r r s r r str t s r t s t r st r t t t r t w (fr) i (t+1) = [ˆP(t+1)] :,i [ˆP(t+1)] H :,i [ˆP(t+1)] :,i +Q i ( w (fr) i (t) µ fr e (n)x fib (t) ), ( ) r Q i = I k [ˆP(t + 1)] :,i [ˆP(t + 1)] H :,i [ˆP(t + 1)] :,i 1[ˆP(t + 1)] H :,i µ fr s t st s 3 s t s t s t r st t s s rt t t t t t r [ˆP(t + 1)] :,i t s s rt t s t s st ss st t s t t t r t r s r2 t s s t r s 2 r t str t t rr t t s r s t s r s s t r t s r t 2 tr t r t r s tr t t s r r t 2 t t P t r t t tr t t s r s t t t r t 2 r st s r t sr s r t s r r s s 1tr st t t r t s r 3 s t t r r st r ss t s s ts t s s t s t s r t t r s s r t rst s t t r s r s r r s t s s P s t s s r s2 t r 2 r s s t r t r t r s t r st s t t s ts t r r q 2 s t t t r 3 r q 2 Ω = 0.65π t r r s r t r t Ω = 0.75π Ω = 0.85π r s t 2 s s r r 2 s 3 M = 17 t t 2 s t L = 80 s s str t r P = 5 rt s s rs
79 Pr s r st t s r t 1 t2 t 3 t t s s s r s t st t s r F (1) F (2) F (3) r t W = [F (1) ] + rst t [f (2) (t+1)] T = H q (t)h + p(t)r(t+1) [f (2) ] T 8K 2 (R+1)d t H p H p (t+1) = H p (t)+r(t+1)[f (2) (t+1)] r(u)[f (2) (u)] 14d 2 t H q H q (t+1) = H q (t)+[f (2) (t+1)] T [f (2) (t+1)] [f (2) (u)] T [f (2) (u)] 14K 2 d t H 1 p 2 t rs tr 1 t t t r s t t t H 1 p (t+1) 48d 2 +20d t H + q 2 t s rs tr 1 t t t r s t t t H + q (t+1) 96K 2 d t H H(t+1) = H p (t+1)h 1 q (t+1) 8K 2 d 2 t F (1) F (3) r r = 1,...,d f r (1) (t+1) = H T r(t+1)[f r (3) (t)] 8K 2 d f r (3) (t+1) = Hr(t+1)f(1) r (t+1) H r(t+1) 2 F 8K 2 d+10kd t [f (2) ] T [f (2) (t+1)] T = H [ q (t+1)h + p(t+1)r(t+1) 8d 2 +8K 2 d [[F t F (2) [F (2) (t+1)] T = (t)] T] ] :, 1 [f(2) (t+1)] T t W W(t+1) = 2W(t) W(t)F (2) (t+1)w(t) 2Kd+16K 2 d ( ) r s r s r s r r w (fr) i (t+1) = [ˆP(t+1)] :,i [ˆP(t+1)] H :,i [ˆP(t+1)] :,i + Q i ( w (fr) i (t) µ fr e (n)x fib (t) ) 10K +8K 2 ( ) 10dK +8dK 2 ( ) s r t rs r s r 3 t r s t r r s t s s s r P r t rs r t rst s r P r t r M t s L t s N s s ts P rt t s M prot P λ r λ t ǫ 10 5 r t t P st t t r t s s r r s t t st t t rt r t r st r t 3 t N = 1000 s s ts tr s t t P
80 SINR [db] P P Batch PARAFAC TW-RLST PARAFAC Frost TW-RLST PARAFAC Ben samples r r P s s r2 t 2 r 2 r st st s t t t r r r t r r r t s r ts s r r 2 s t 2 ts t t 1 t2 r t r s s s s t t r r t t t r s t r t r t r st r r t r r t s s t s t s r 1 ss s s t t t r Ω > 0.4π r r t s s r t s tr 2 st t r t t r q s t [ ]π [ ]π [ ]π r s t 2 t r r s st rt t t s s t t 2 r t s r t t t rs s s ts t t r s t s s s r r s t tt r s r tt r r t r s t r t r N = 5000 s s ts t r N = s s ts r t s t t r s t s r t t t r s s s t ss ss t2 3 t r r t s t t s r s r s t t r s r t s P s t s s r s2 t r 2 t s r s s t r s t rst s t r s ts t r r q 2 s t t t r 3
81 SINR [db] Magnitude response [db] Magnitude response [db] theta [deg] theta [deg] t r s r t r st r s r t r t r s s r t r t r q Batch PARAFAC TW-RLST PARAFAC Frost TW-RLST PARAFAC Ben samples r r r2 r q 2 Ω = 0.65π s s s r s t s t r st s s t r r s str t ts s t t t r Ω > 0.45π t r r r r t rs r r s r s 2
82 Magnitude response [db] Magnitude response [db] P P theta [deg] P t r t r t r q 2 t r s s r r s s t r N = 5000 t r s t r theta [deg] P t r t r t r q 2 t r s s r r s s t r N = t r s t r s t r t r s s t r r t t s s r rt s s t t r r s s r rt s s t r ts t t s t t t s s t r ss 2 rt s s s r t r r s t t t P r2 s s ts t r s t s s P r t s r t 3 t r s s ts s t t r s t s s r r s t t t P r t s st r s t tr t P r t s t t t ts st r
83 Magnitude response [db] Magnitude response [db] SINR [db] ICA Batch PARAFAC Proposed TW-RLST Frost Proposed TW-RLST PARAFAC samples r r s t t P s r t s r s t s t r 2 r t r r t2 r ts 1 t2 t r ss s r s s rs s s tr t P s t s r t 2 t s s r s r st t r s r s r t t t s r 2 r s s t tt r s t r st r t s t r t t t r r r t theta [deg] theta [deg] P t r t r t r q 2 t t r P t r t r t r q 2 t r st t r r tt r t r s t r r
84 P P r2 r s 2 t 1 t2 r t s s t r q 2 r t tr s r t t t tr s r s t 1t r s t st t s s t t s s rr r rt s r t t s r t q s r s r t st t s 1t r s t s r r r r s r t t s s t t s s s t P s t s r s r t s r s s t t s ss t str t t rr t t s r s t r r s t r r t s t t r t r t P s t t t 1 tr s rst r t s t t 1 t2 t s s t t s r t t r t s 2 t r s r r t r r s st t t rt s r s t t r s t r s st r r
85 P t s s s s q s t r ss t s s rr 2 s r ss r r t t r t s t st s s t rr 2s s s t t r 2 t s r rs r st ss t s s s r t rr t s r s r r t 2 s rr 2 ts r s 2 r r r r ss ss t t r s t s s s r r r t t t s tr2 s r rs 2 s r 3 s rs r st rt ss r s s t r r s s t r t rs t ss t t 3 t r st t s 2s r t rt r rr r r r t s t t t ts s t 2s r t 2 t 2 t t r r s q t2 t s r t q t2 s s r s t r t s t t r r s r t r s rt t s t r t r t s rt r t s t r s t t 2 s s r s ts r 1 s t r r s r 2 r s t t t s r t t t s t ss r r t s s r2 r t t r s t s2st s r r s 1 t t s2st s s t t rt r rr r t r t s 2 s s t t q r t t t t r t ts s t2 s ss t t r t r q r s r r tr s t r t s t s t r2 r s t 2
86 P s t t rr t 2 r r ss ss t s2st s t s t t t t r s t r r r t 2 r r ss ss t t s s r r t sts r s t s st r t t r t Pr s r s r 2t 1 r ss s t ss ss t s2st s q t2 2 s rst r r 1 s s t rt r r t rs s 2t 1 r ss t t rt r t t s r 1 t r s t s r t s t t 2 t r s t t r s s t s r t t t r t2 rt r t s r st r r s 2 t st t rr r t t s t rr r t t s s t t t s s s t t t s 2t 1 r ss s s r r t r t t s t s t tr s r t t r 2 t t s r s s t s r t2 str t t s r t t t s st t st ts r t s t t str t t s s t t t r s ts s t r s t t tr t r 2 t t t t t r r t rt r t s t rt r t s t r t rr r t s t t t t 1 t2 r s 1 t 2 t t r t s r r t 1 t2 s st r t t t s 1 t2 r s r t s r t r r r r t s r r t t t t t rr 2 s rt r t s t t r r s r rr t t s r t rt r t s r s r st t rr r rr 2 t s t rr r ss rr t q r s r s s t t t s r s r s t t2 tr 1 t r tr 1 t s 1 t t t s rt r t s s r s t r t t r t r s t 2 r t s str t t2 rt r t s s r r s t r r t 2 s r t r t2 s rt r t s s s r q 2 s t t t rr r s rr r s t r t r t t s s s t q r t r t r tr s r s s tt r r s ts t t r t r r s s t t q r t r t r tr s r s t s s r r s s r rr 2 r r ss ss t r r t s t r r s t s t2 s t t t r r t s r s s s t s s t t t t s r rt r t s t r s ts t t r s t r r ss ss t r r s t t r s ts t s t s r s ts 2 t r s t s s t s r
87 t st rt t t r s r r rr 2 t M t ts x(t) = i a(θ i )s i (t)+v(t) C M 1, r a(θ i ) s t st r t r θ i s t 3 t i t s r s s i (t) v(t) s t t s t r r t t st r t r t s t s 2s a m,i = e j2πµ i r µ i = (m 1) d cosθ λ i m s t t t 1 d s t t r t s t s d s t s t t r r t s 2 µ i t s s r t s r t s t rr rs r r s t s t r wavefront r str t r t t rr 2 t t s t rr rs r s s t t r t r s t t θ i s s t t t t r r s t 2 t ss str t r r Θ N(0,σ 2 θ ) s r r t r s t r s st t rr r x (Θ) (t) = a (Θ) (θ 0 )s 0 (t)+ i 0 a(θ i )s i (t)+v(t) C M 1, r a (Θ) (θ 0 ) = a(θ 0 +Θ) s t st r t r rt r 2 r r Θ t s t r st rr s s t t i = 0 s r s t t t s t st t rr r s 2s t s s r t s r t s ts r r s t t t t s t s rst
88 P t s t r r t rt s 1 s r ts r s t t (m 1)d t x 1 s t ts 1 t t r r t s s t t s t rr r t s s s x,y z r 2 t r r s D x D y D z r s t 2 t t r s s r s r t 2 t 3 t θ i t t s ts t φ i tt rs 1 t s 2s r t t r s s t µ m,i =(m 1)dcosθ i cosφ i +D x,m cosθ i cosφ i +D y,m sinθ i cosφ i +D z,m sinφ i, r t s s r t m t s t t 1 s t r r s r t t r s t t t r r s r r rr 2 s t r tt s x (D) (t) = i a (D) (θ i,φ i )s i (t)+v(t) C M 1, r a (D) (θ i,φ i ) = [e jµ 1,i,e jµ 2,i,...,e jµ M,i ] T s t st r t r rt r 2 t r t r D = [D x,1,d y,1,d z,1,d x,2,...,d z,m ] s t r s r t s t r s r t s s t t s r t2 str t t s r t s t t t ts r tr s r t s r r r t 2 s ts r t s t s r t s r r q r s r t t rts t r 2 t t t 1 t2 r t t s s t r t ts t r s r r s r t ts 1t s r t r r s s r t r s t 2 r t t s t k t t t s str t µ (κ) = E { U κ} = f U (u)u κ du,
89 r f U (u) s t r t2 s t2 t P t r r U s r t r 1 t f U ( ) f U (u) ω(p n ) = n ω n δ(u p n ), r p n s t n t s t ω n s t n t t δ(u) u=0 = 1 δ(u) = 0 r 2 t r s u s r t t s r t rs ˆµ (κ) ut = n ω n p κ n, s r 3 ω(p n ) s s r t r 1 t f U (u) t t ω n t t s t p n r s ts s s r t t t t s r r 2 ts s ts r t 2 s t r s2st r t r t 1 s q t 2 s tt r t s r κ s s ω 1 +ω = 1 ω 1 p 1 +ω 2 p = E { U } ω 1 p K 1 +ω 2 p K = E { U K}, r K s t st r r s r t t t s ts r t r K s t r s ts t t2 str t t t t s ts t 3 r t str t r st t s ss r r t 3 r t t s2 tr2 ω 1 = ω 3 p 1 = p 3 p 2 = 0 s t s s2 tr2 s ts r r t t r t rs r s t p 1 = p 3 = 3σ 2, p 2 = 0, ω 1 = ω 3 = 1/6 ω 2 = 2/3 r r s t s P t ts r 1 t s t t t t t t r s ts tr s t s t tt r P r 1 t s t t t t t s ts s q t t t t s P ts ts t s ts s f U ( ) t t st s s r κ r r r t t s s t 2 t t r t r r E { g(u) } = n ω n g(p n ),
90 probability P Continuous PDF UT3 UT x r r s t t s P t t P r 1 t r g( ) s r t s t t s r t s t t st st 2 t q t s t 1 g(u) ts 2 r s r s E { g(u) } { =E g(0)+ dg(u) du u+ 1 u=0 2! d2 g(u) du 2 u 2 u= ! d3 g(u) } du 3 u u=0 = a 0 +a 1 E{U}+a 2 E{U 2 }+a 3 E{U 3 }+..., r a i s t i t 2 r s r s t r r t ts r q q t s 1 t r 2 t t s tr t t t K t t s t g( ) s t t t r t s s t s s t t t t r t2 str t t r t s 2 ts st t st ts r t t t t r t t s r t r r s r r s t t s2st r t r U = [U 1,U 2,...,U M ] T s s r r r r s t 1 t s t r ss r ts r 3 r s t 1 t s U r s t s t
91 r t t r s E[U κ 1 1,...,Um κm,...,u κ M M ] = f Um (u m )u κm m du m, R r κ m {1,2,...} and κ j m = 0 r r t t r r r s s s t s t 1 t g(u) : R M R s 1 r ss s E[g(U)] = f(u 1,u 2,...,u M )g(u)du R M = f Um (u m )g(u)du. R M m t t r t 2 r tt s t r t r t 2 s 2 s r t t g(u) s r 1 t 2 t r t 2 q t s 2 t U s s r t r t t r s t t r s t q t r t 2 r 1 t r 2 s t ss t t t t t r t P f U (u) ω nm δ(u m p nm ). m n m 2 E[g(U)] t t t t 2 ss t t E[g(U)] g(u) ω nm δ(u m p nm )du R M m n m = g(u) ω nm δ(u m p nm )du R M n 1 n M m = g(u) ω nm δ(u m p nm )du. n R M 1 m n M s t t s s t r rt2 t s r t t r r s E[g(U)] ( g(p n1,...,n M ) ω nm ), n 1 n M m r p n1,...,n M = [p n1,...,p nm ] T s t t r s ts
92 P Pr s P r r ss ss t rr 2 s s t s s t r r r t t q t r s s t t s s t s r s r t r r t ss 2 t q s s t r s w = a(θ 0 ) t s t t t s t t r r s s r t r rr t s s s SINR = w H R ss w w H (R int +σ 2 I)w, r σ 2 s t t s r r rr t s s t rr t tr 1 R ss t t r r rr t tr 1 R int R ss = a(θ 0 )a H (θ 0 ), R int = i 0 a(θ i )a H (θ i ). r s t s rt rt r t s s s t r t a(θ i ) r a (Θ) (θ i ) r t s r st t rr r s s r rt r t s t t t s t s r s r a(θ i ) s r 2 a (D) (θ i ) r t r t r a (Θ) (θ i ) a (D) (θ i ) t s r t t t s s r r t s 1 t t t t r s r2 r s s r r 2 t s2st s r t r 2 t t t st t rr r t s t rr r t t t t s t ss r t r s r r r s t r t t t t t s r t r t s SINR r t s t t r st t rr r rst t r t s s s r st t rr r s r s t s rr r s r t s t s rt r t q 2 ts t ts a Θ (θ 0 +Θ) t r r s t r t t st r t r t s s t t r t s t tr t t r t t s t t t t r
93 Points P P P P N r 3 t s Θ r s t 1 r ss s SINR (Θ) MC = 1 N N n=1 w H R (Θ) ss (Θ[n])w w H (R (Θ) int (Θ[n])+σ2 I)w, r Θ[n] s t t r 3 t Θ t r s t rr t tr s r 2 R (Θ) ss (Θ[n]) = a(θ 0 +Θ[n])a H (θ 0 +Θ[n]), R (Θ) int (Θ[n]) = a(θ i +Θ[n])a H (θ i +Θ[n]). i 0 t t t t s r r2 t s s t t t s s r 3 t s t r t t r s r r t r t t t r s t s t s t r t r t t 2 t 2 s r s 2 2 ss t s s t r t r r st 2 t t t t r s t s t s t t rst ts t r r Θ t ts s ts r t r st 2 t s s r t r t s t 2 r g( ) q t 2 t Θ n 2 p (Θ) n SINR (Θ) N UT UT = n=1 ω n w H R (Θ) ss (p (Θ) n )w w H (R (Θ) int (p(θ) n )+σ 2 I)w. t2 2 N UT N MC q t t r s t t t 2 t t t r r s s t r s t N UT N MC r t t N MC r r 10 2 t 10 5 r 3 t s 10 5 UT3 UT5 MC MC10 3 MC10 4 MC Method r r r t r s s
94 P t r t s t t r t t s t rr r t s t t s r r s2st s rt r 2 t t s t rr r s s r t rt r t rs t 2 t t r t s s t t t s r t tr t t r t s sts t t r N r 3 t s t r t r D 2 SINR (D) MC = 1 N N n w H R ss (D) (D[n])w w H( R (D) int (D[n])+σ2 I ) w. s r r s t t r r rr t tr s t r s t s t rt r t s r r tt s R (D) ss (D[n]) = a (D[n]) (θ 0,φ 0 )[a (D[n]) (θ 0,φ 0 )] H, R (D) int (D[n]) = a (D[n]) (θ i,φ i )[a (D[n]) (θ i,φ i )] H. i q t t q t r t s s t t s r r r s s r r t r s t s s r t t r s r t t SINR (D) UT = N UT n z,m =1 N UT N UT N UT N UT n x,1 =1 n y,1 =1 n z,1 =1 n x,2 =1 ω nx,1 ω ny,1 ω nz,1 ω nx,2...ω nz,m w H R ss (D) (p nx,1,...,n z,m )w w H( R (D) int (p n x,1,...,n z,m )+σ 2 I ) w,... r p nx,1,...,n z,m = [p nx,1,p ny,1,p nz,1,p nx,2...,p nz,m ] T t ss str t s 3 r t s t t r t r2 r r r2 s rs s 2 s r s r t s s ss str t s t t rr 2 ts s t rr rs r r t s 2 t t r2 tt t r s t t t r ss r t r t 2 r r s str t t r r s r rr t t r r r str t s s t s s str t r t r st ss str t s s t s 2 2 s r D x D y D z s 3 r ss r r s t r σ 2 d t s ss r r s r s ts ss str t t r q t t s t r r s t
95 Points P P P P s rt r s 2s r s r µ (D) m,i = (m 1)dcosθ icosφ i +D m, r D m N ( 0,σ 2 D) t t r σ 2 D = σ 2 d (cos2 θ i cos 2 φ i +sin 2 θ i cos 2 φ i +sin 2 φ i ) s t 2 q t σd 2 t t t s s t r t s s s q t t r t s tr tr t t s r r t t t r rt r t s t s t SINR (D) N UT UT = N UT n 1 =1 n 2 =1 N UT n M =1 w H R ss (D) (p n1,n 2,...,n M )w w H (R (D) int (p n 1,n 2,...,n M )+σ 2 I)w. ω n1 ω n2...ω nm t t r t s t t ts t r 2 t r s t 2 t t t s ts t s t t t t ts r s t t r ts r t r s r s r UT3 UT MC10 2 MC10 3 MC10 4 MC MC Antennas r r s t t r ts r t 2 t t r2 r rr 2 ts t t r ts t 2 t r s 1 t 2 NUT M r t s r r t r t t s s s t s 2 r q r s r 2 r t ts r t s s t t t s t t t s r t t s r t 10 6 r t s t s s s s tr r t ts t
96 Sample variance (db) P t s t s ts t t s s t SINR s t s t t r ts r q r r t t s t s t s s t t r s r s t tt t q st t t r s s r r s t s r 2 ts t t s r s t str t r r r s t s s r t t t r s t s t s s t t r tr t r tr t s r t t t s s t r r t r s s t r r t 2 s r t t t rr r t t s r r t t s s ss t r rs t s r t r t tt r t st t str t t st t t t t r 2 r s s t t s r t r q t t r s s r r2 r tr s s r s t s s t s s s r rt r t s 10 0 univar multivar Monte Carlo trials r r rs s t r tr s t r s t s s t r t s s t t t t s t s s tr s r s t t t r s 10 3 s r s t t r t t s s t s r r s s t r s t r t t r t s q t r s t s s t t t r s s t 2 r r
97 SINR (db) t t r t s s t r ts r s s r r 2 s t r t s r t t t r t s r s r s s t st t s t t r st t t s s 10 3 r t s t s t ts s s r s r s s s t t t t r r s s r s t t r s t 2 s r t r s t s t t 10 6 r 3 t s r s ts r s r r r t MC variance MC10 6 UT3 UT < # (degrees) r SINR s σ Θ t st t rr r r t r s st t t t r s t r 10 6 r 3 t s r s s r r r r t s s t t t SINR st t s t t s st 1 t 2 t 10 6 r 3 t s SINR r t st r t s s r t t r t σ Θ = 4 t tt r st t r ts r r st r t s r 2 r r st t s t s s rt t t r t t t t t s r t s r t t t t st t s t s r t s t s t s ss t t t r 10 6 r 3 t s r r s t 2 SINR MC10 6 s r2 s t t r tr t r r t rr r s s Error = SINR SINR MC10 6. q t s s t s r t t t r s s t s t t t rr r t t t t t r t r
98 Error (db) P t t t t rr r t t t t r t r t t r t s P r r t t r t r t r t t r t r t st t s s 2 t s r r s st t r tr s 10 5 r t ts r t r t tr s s t 10 6 ts r s r s r t st t t t tt t r r t r s 3 t r r t s t r r r s s t r t rr r t t s t r r s t t r 10 6 r 3 t s r r t s s t t t t st s t 10 6 SINR t σ Θ = 6 t ss t rr r r t s s rt t t t t rr r s t r t 2 r t r t tr r 2 s σ Θ s r t s tr s r t s s t t t r t 2 3 r rr r t t s t r r t t s t t t SINR UT3 UT < # (degrees) r rr r s σ Θ t st t rr rs st r t s t 1 t s σ Θ = {1,6} r2 t s s r r r ts s t SINR r σ Θ = 1 t r t r s r r σ Θ = 6 r s st r t t s t s t 1 t 2 r r r t t ts t SINR t r t t r t t r s s t t r s t s r t
99 SINR (db) t r q t s s r t r t t t r t r s t t t t rr r t st t MC10 6 < = 1 UT3 < # = 1 UT5 < # = 1 MC < # = 6 UT3 < # = 6 UT5 < # = SNR r SINR s t 1 σ Θ = {2,10} t 1t s t t t t t s ss ss t r s ts r s r t t t r r r r2 r tr s r s ts s t t t t t t t t t r s t t s t s 2 t s tr s r r r t s r 2 s t t t s r s ts r t t t r ts r t s s r P r r t t t r t r t t r t s t 1 r2 σ D s s t r r t s t s t s r s t t s t r r2 s 2 r s t s r r r t s t t ts t SINR r t s r r r t r rr 2 t r r ss s r t t s r r t rr 2 t r rt r 2 r s t r ts t r s t t t r r s 1 t2 t r t s r s s r r r s r t t 1 t2 t t r s s s r t r t t r s s s s t t 3 r s r s t t r t r r s t t r t s t s r r λ
100 SINR (db) time (s) P 10 2 MC UT UT number of MC trials r t t t t r t t r s st t rr r MC variance MC10 6 UT3 UT < D (6) r SINR s σ D t rr 2 t s t r t s r s s t rr r r t t r t s r r t s r t t t rr r s rt 2 3 r r t t t st r t t r s t 2 s t t rr r r s st r t t t s 1 t r 2 s t r s s r 2 t 1 t t r t t rr r t t r r s σ D rr r r t r 3 t s r r s r 2 r r t s t ss t t rr r s r t st r t σ D s 1 t 4 6 t s r
101 SINR (db) Error (db) UT3 UT < D (6) r rr r rs s σ D t rr 2 t s t r t s r 2 s t r t s t SINRs t r t s s t s t rr r s t SINRs t r t r t s t s s t s t rr r s st t r t t s MC 10 6 < = 0.03 UT3 < D = 0.03 UT5 < D = 0.03 MC 10 6 < D = 0.12 UT3 < D = 0.12 UT5 < D = SNR r SINR s t 1 σ D = {0.03,0.12} s t ss ss s t t t t t t r t t r s ts r t r t t t r r r r2 r tr s r s ts t t t t t s t t t r s t t s t s r 2 r t
102 time (s) P tr s r t s t s r t t t t r 2 r t tr s r r q r s r s t s r t t r ts t t t r t r t s t s s s r 10 2 MC UT3 UT number of MC trials r t t t t t r t t s t s t rt t s r2 s t r s s t t t s t r ss ss t r r r t s s t t t t t r t t r r r t 2 r t t r t2 t s t s st t rr r r t s t rr 2 ts s t s r s r r t ss ss t r r r s t r s t r t t tr t s t s s t s s s t t t s r2 r 2 ts r t r s t rr r
103 r s s rr 2 s r ss s r 2 r s t t r2 2 r s t2 s r s r s st r str t t t2 t s r t t r t t s Pr s r q r ts r t 1t r t t r s s sts t t t s t r s s rt t s t r s t s s t r t s s s t t s t t r r t t t t r s r s rr t t r s t s t r t s t r r t r s 2 s rt s t t s t t s t r s s r s r t s t rr 2 s r ss r s 2 t r s r s s 2 2 s st s r s t 2 t s r s r r r t s t s s s 2 t t s t s r rst st t r t t q s t t t t tr t r s t t s r r t r t q s t t r r t t r s s s r r t t s t q s tt r t t r t s s r t 2 s r s ss 2 1t r t s2st s 2 r t t s t rr 2s t t s s 2 t r 3 r r t t r st t 2 t r 3 t t s t2 t t s t 1 r t s r t t s t2 t t s 1 r r rs t s s t t t ss r s q t t s t st r t R t s t r s r t t R 1 s t tt r t r r t t t s ss t 2 r q 2 r t tr s r t s t r r s r ss 2 s s t tr s r t s t 1tr t s r ss P s t s t s 1 r s t t ss t s s r q r r t str t rr t t s rs s
104 t t t r t P s t tr r t s s ts tt r r t st t t rt t t 2s s t s r t r s r r t r r s r t s r t t t2 t r t s r t st t2 t r t s r t r s r t 1 r r 1 t2 r r rr t r r t s 1 t2 r s 2 t t ts t t r 2 s s s t sts s r r s s r s t r r t t s t r s s r t r s r r t s s s t r P s s t s s t r st t t s r s t s r r r r t r t2 t s r t t s r r r r2 r s r t r t s s t r t t r r st t s ts r t r st s s r t t t s s s r r r t t s s s t r 2 t s s t rr 2 s s r t t r s r s t r t s r s t r t t t s t 2 s s r r r s r s s r s s t t rr t q s t t rr t t s r str t r r s s t r q 2 2 s s t 2 s s r s t r t s s t r t t r r r r q 2 1tr 1 t2 t t r t r t r s r t ts 2 rt 2 r s r r 1 t2
105 P s 1 r s r t s r t t tr s t rs tr 1 s ts r t s r s t s r ss t ts t r r 2 s ss t r t s2st s t t t t r t r r t r s t t r r r t s tr 1 s s t rt t t s r s s st r tr 1 2 BA(θ) = 0 r B s t tr 1 A s t st r tr 1 θ s t r t t s t s r s s r t r s str t s t rr 2 s t t s s s ss t r t s r str s r s r s s r r s t t t s r str t r r str t tr 1 r t s r s st r t rs s r r r t t 2 r r t 2 s t t tr 1 t r st s t t t t s t r b s t q s b s s rt r t t t s t t r t s t B 1
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