Broadband eigenvector methods for towed array shape estimation with a single source

Author

Smith, J.J. ; Leung, Y.H. ; Cantoni, A.

Author_Institution

Adaptive Signal Process. Lab., Curtin Univ. of Technol., Bentley, WA, Australia

Volume

6

fYear

1996

fDate

7-10 May 1996

Firstpage

3193

Abstract

This paper investigates two techniques for extending the narrowband (NB) eigenvector method for towed array shape estimation to process broadband sources. These techniques are the weighted incoherent broadband processor (WIB) and the weighted quasi-coherent broadband processor (WQB). It is demonstrated, both analytically and via computer simulations, that the two broadband processors can dramatically improve the bias and variance of the receiver position estimates, compared to the NB technique. The results of computer simulations also demonstrate that the WQB method has a lower SNR threshold than the NB and incoherent methods

Keywords

array signal processing; direction-of-arrival estimation; eigenvalues and eigenfunctions; sonar arrays; sonar signal processing; SNR threshold; bias; broadband eigenvector methods; broadband source processing; computer simulations; incoherent methods; narrowband eigenvector method; receiver position estimates; single source; towed array shape estimation; variance; weighted incoherent broadband processor; weighted quasicoherent broadband processor; Adaptive signal processing; Australia; Computer simulation; Frequency estimation; Narrowband; Niobium; Parameter estimation; Phase estimation; Phased arrays; Shape;

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.1996.550555

Filename

550555