MODE-SPACE SPATIAL SPECTRAL ESTIMATION FOR CIRCULAR ARRAYS

被引:14
作者
EIGES, R [1 ]
GRIFFITHS, HD [1 ]
机构
[1] UNIV LONDON UNIV COLL,DEPT ELECTR & ELECT ENGN,LONDON WC1E 7JE,ENGLAND
关键词
CIRCULAR ARRAYS; SUPERRESOLUTION TECHNIQUES; SPATIAL SPECTRAL ESTIMATION;
D O I
10.1049/ip-rsn:19941539
中图分类号
TN [电子技术、通信技术];
学科分类号
0809 ;
摘要
The application of superresolution techniques to circular arrays in mode space is proposed. This formulation allows the use of algorithms that are otherwise specific to equispaced linear arrays, with the added benefit of full 360-degrees azimuth coverage. Coherent signals can be decorrelated by a mode-space version of the spatial smoothing technique, and, in the case of broadband signals, through an inherent property of direction-independent frequency-domain smoothing.
引用
收藏
页码:300 / 306
页数:7
相关论文
共 27 条
[1]  
Bienvenu G., 1980, P IEEE ICASSP 80 DEN, P307
[2]  
Burdic W. S., 1991, UNDERWATER ACOUSTIC, V2
[3]  
BURG JP, 1975, THESIS STANFORD U ST
[4]  
CLARKE IJ, 1991, ADV SPECTRUM ANAL AR, V2, pCH2
[5]  
DAVIES DEN, 1983, HDB ANTENNA DESIGN, V2, pCH12
[6]  
EIGES R, 1993, IEE C PUBL 2, V370, P698
[7]  
Evans E., 1981, PROC 1 IEEE ASSP WOR, P134
[8]  
JONES MG, 1990, THESIS U LONDON
[9]   MULTIPLE BROAD-BAND SOURCE LOCATION USING STEERED COVARIANCE MATRICES [J].
KROLIK, J ;
SWINGLER, D .
IEEE TRANSACTIONS ON ACOUSTICS SPEECH AND SIGNAL PROCESSING, 1989, 37 (10) :1481-1494
[10]   FOCUSED WIDE-BAND ARRAY-PROCESSING BY SPATIAL RESAMPLING [J].
KROLIK, J ;
SWINGLER, D .
IEEE TRANSACTIONS ON ACOUSTICS SPEECH AND SIGNAL PROCESSING, 1990, 38 (02) :356-360