EFFICIENT DIRECTION-FINDING METHODS EMPLOYING FORWARD-BACKWARD AVERAGING

被引：102

作者：

LINEBARGER, DA

DEGROAT, RD

DOWLING, EM

机构：

[1] Erik Jonsson School of Engineering and Computer Science, The University of Texas at Dallas, Richardson

来源：

IEEE TRANSACTIONS ON SIGNAL PROCESSING | 1994年 / 42卷 / 08期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1109/78.301848

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：

In this paper, we develop a general approach for reducing the computational complexity of any direction finding method implemented with forward/backward (FB) averaging. We develop simplified FB data matrices in a manner paralleling previous work related to centrohermitian (correlation) matrices. Based on these simplified data matrices, efficient construction and updating of the FB correlation matrix is developed. In addition, efficient FB FFT, FB beamspace, FB EVD updating, FB SVD, and FB SVD updating methods are derived. In most cases, FB-based direction-finding methods can be simplified so that the computational complexity is reduced below that of an analogous forward only implementation. Thus, effectively twice the amount of data is processed with less total computation.

引用

页码：2136 / 2145

页数：10

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