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Titolo:
Robust adaptive array beamforming with random error in cycle frequency
Autore:
Lee, YT; Lee, JH;
Indirizzi:
Natl Taiwan Univ, Dept Elect Engn, Taipei 106, Taiwan Natl Taiwan Univ Taipei Taiwan 106 , Dept Elect Engn, Taipei 106, Taiwan
Titolo Testata:
IEE PROCEEDINGS-RADAR SONAR AND NAVIGATION
fascicolo: 4, volume: 148, anno: 2001,
pagine: 193 - 199
SICI:
1350-2395(200108)148:4<193:RAABWR>2.0.ZU;2-N
Fonte:
ISI
Lingua:
ENG
Soggetto:
CYCLOSTATIONARY SIGNALS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
10
Recensione:
Indirizzi per estratti:
Indirizzo: Lee, YT Natl Taiwan Univ, Dept Elect Engn, Bldg 2, Taipei 106, Taiwan NatlTaiwan Univ Bldg 2 Taipei Taiwan 106 g 2, Taipei 106, Taiwan
Citazione:
Y.T. Lee e J.H. Lee, "Robust adaptive array beamforming with random error in cycle frequency", IEE P-RAD S, 148(4), 2001, pp. 193-199

Abstract

By exploiting the cyclostationary properties, the SCORE algorithms presented by Agee et al. (1990) have been shown to be effective in performing adaptive beamforming without requiring the direction vector of the desired signal. However, these algorithms suffer from severe performance degradation inthe presence of a random error in cycle frequency. The authors first establish a statistical model of the cyclic correlation matrix when the random error exists. According to this statistical model, two robust methods based on the SCORE algorithms are developed to achieve robust adaptive beamforming against random error. Analytical formulas are then derived for evaluatingthe performance of the proposed methods. Several simulation examples are also presented for confirming the theoretical analysis and showing the effectiveness of the proposed methods.

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Documento generato il 28/10/20 alle ore 19:44:35