WIDE-BAND ARRAY-PROCESSING USING A 2-SIDED CORRELATION TRANSFORMATION

被引：163
|
作者：
VALAEE, S [1 ]
KABAL, P [1 ]
机构：
[1] MCGILL UNIV,DEPT ELECT ENGN,MONTREAL,PQ H3A 2A7,CANADA
来源：
IEEE TRANSACTIONS ON SIGNAL PROCESSING | 1995年 / 43卷 / 01期
基金：
加拿大自然科学与工程研究理事会;
关键词：
D O I：
10.1109/78.365295
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A new method for broadband array processing is proposed. The method is based on unitary transformation of the signal subspaces. We apply a two-sided transformation on the correlation matrices of the array. It is shown that the two-sided correlation transformation (TC) has a smaller subspace fitting error than the coherent signal-subspace method (CSM). It is also shown that unlike CSM, the TCT algorithm can generate unbiased estimates of the directions-of-arrival, regardless of the bandwidth of the signals. The capability of the TCT and CSM methods for resolving two closely spaced sources is compared. The resolution threshold for the new technique is much small than that for CSM.
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页码：160 / 172
页数：13
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