Title

Improved active sonar detection using autoregressive prewhiteners

Document Type

Article

Date of Original Version

1-1-1990

Abstract

An active sonar receiver is proposed that more closely approximates the optimal prewhitener and matched filter receiver than currently existing active sonars. The prewhitener is based on an autoregressive model for the reverberation that is shown through analysis of real data to be an accurate model. At the output of the prewhitener a generalized likelihood ratio test detector is implemented. Experimental range-Doppler maps of real data demonstrate that low-Doppler targets are more easily detected than with current FFT processors. © 1990, Acoustical Society of America. All rights reserved.

Publication Title

Journal of the Acoustical Society of America

Volume

87

Issue

4

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