Active sonar ABF application issues

Author

Alsup, James M. ; Zabal, Xavier

Author_Institution

Naval Command, Control & Surveillance Center, San Diego, CA, USA

Volume

2

fYear

1995

fDate

Oct. 30 1995-Nov. 1 1995

Firstpage

1081

Abstract

This paper discusses several issues which arise when designing algorithms for adaptive beamforming (ABF) as applied to active sonar. Adaptation on match-filtered data and the necessity for pre-steering are clarified. The validity of narrowband beamforming and the use of short data blocks are considered. The singular value decomposition and various spatial smoothing options are discussed. Augmentation, desensitization, and a closed-form quadratic constraint method are explained.

Keywords

array signal processing; ABF application; active sonar; adaptive beamforming algorithms; augmentation; closed-form quadratic constraint method; desensitization; match-filtered data; narrowband beamforming; presteering; short data blocks; singular value decomposition; spatial smoothing; Array signal processing; Autocorrelation; Chirp modulation; Eigenvalues and eigenfunctions; Matched filters; Narrowband; Pulse width modulation; Sensor arrays; Sensor phenomena and characterization; Sonar applications;

fLanguage

English

Publisher

ieee

Conference_Titel

Signals, Systems and Computers, 1995. 1995 Conference Record of the Twenty-Ninth Asilomar Conference on

Conference_Location

Pacific Grove, CA, USA

ISSN

1058-6393

Print_ISBN

0-8186-7370-2

Type

conf

DOI

10.1109/ACSSC.1995.540866

Filename

540866