Steered response control of the generalized sidelobe canceller

Author

Fudge, Gerald L. ; Linebarger, Darel A.

Author_Institution

Program in Electr. Eng., Texas Univ., Dallas, TX, USA

Volume

5

fYear

1995

fDate

9-12 May 1995

Firstpage

3623

Abstract

This paper presents a new set of derivative constraints for the generalized sidelobe canceller (GSC) that can be used to reduce sensitivity to steering error. These constraints are designed to flatten the spatial null of the GSC blocking matrix so that for a small steering error, the desired signal is still blocked and the GSC does not experience signal cancellation. With this approach, the steered response of the GSC can be forced to locally approximate any realizable fixed-weight beampattern. A related set of constraints can be used with the eigenvector constraint calibrated GSC to control the steered response for use in the presence of array errors

Keywords

array signal processing; eigenvalues and eigenfunctions; filtering theory; interference suppression; matrix algebra; GSC; array errors; blocking matrix; calibration; eigenvector constraint; fixed-weight beampattern; generalized sidelobe canceller; spatial blocking filter; spatial null; steered response control; steering error; Array signal processing; Erbium; Error correction; Filters; Noise cancellation; Phased arrays; Robustness; Signal design; Signal to noise ratio; Statistics;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 1995. ICASSP-95., 1995 International Conference on

Conference_Location

Detroit, MI

ISSN

1520-6149

Print_ISBN

0-7803-2431-5

Type

conf

DOI

10.1109/ICASSP.1995.479771

Filename

479771