Title :
Active sonar ABF application issues
Author :
Alsup, James M. ; Zabal, Xavier
Author_Institution :
Naval Command, Control & Surveillance Center, San Diego, CA, USA
fDate :
Oct. 30 1995-Nov. 1 1995
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;
Conference_Titel :
Signals, Systems and Computers, 1995. 1995 Conference Record of the Twenty-Ninth Asilomar Conference on
Conference_Location :
Pacific Grove, CA, USA
Print_ISBN :
0-8186-7370-2
DOI :
10.1109/ACSSC.1995.540866
