Rank enhancement for eigenstructure based direction finding using arrays with non-uniform element responses

Author

Jeffs, Brian D.

Author_Institution

Dept. of Electr. & Comput. Eng., Brigham Young Univ., Provo, UT, USA

Volume

6

fYear

1996

fDate

7-10 May 1996

Firstpage

3181

Abstract

This paper presents a new spatial smoothing approach for rank enhancement in sensor array direction finding applications. The method works with coherent scene data when non-uniform array element gains would make conventional smoothing ineffective. Sub-array data is pre-weighted before smoothing to regularize the problem, and so that a consistent phase and gain structure is maintained across the sub-arrays

Keywords

array signal processing; covariance matrices; direction-of-arrival estimation; eigenvalues and eigenfunctions; smoothing methods; coherent scene data; covariance matrix; eigenstructure based direction finding; gain structure; nonuniform array element gains; nonuniform element responses; phase structure; preweighted subarray data; rank enhancement; sensor array direction finding applications; spatial smoothing; Additive noise; Covariance matrix; Layout; Multiple signal classification; Narrowband; Noise level; Phased arrays; Sensor arrays; Signal resolution; Smoothing methods;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 1996. ICASSP-96. Conference Proceedings., 1996 IEEE International Conference on

Conference_Location

Atlanta, GA

ISSN

1520-6149

Print_ISBN

0-7803-3192-3

Type

conf

DOI

10.1109/ICASSP.1996.550552

Filename

550552