Exploitation of fluctuations to enhance target detection and to reduce clutter and background noise in the marine environment

Ronald A. Wagstaff

doi:10.1117/12.243005

17 June 1996 Exploitation of fluctuations to enhance target detection and to reduce clutter and background noise in the marine environment

Ronald A. Wagstaff

Author Affiliations +

Proceedings Volume 2742, Targets and Backgrounds: Characterization and Representation II; (1996) https://doi.org/10.1117/12.243005
Event: Aerospace/Defense Sensing and Controls, 1996, Orlando, FL, United States

Abstract

Amplitude and phase fluctuations are an inherent characteristic of many types of propagation media including sound in the marine environment. Generally, fluctuations are regarded as a nuisance to be ignored, avoided, or eliminated. However, this paper shows that fluctuations can be effectively exploited to enhance the detection of targets that fluctuate less in amplitude than the clutter and background noise. In fact, a case can be made that the exploitation of fluctuations constitutes a third dimension for achieving gain to supplement the other two well know dimensions of frequency resolution gain and array aperture gain. Results from measurements at sea are presented to support the claim that a new dimension of gain is being accessed and to demonstrate that the additional gains can be substantial.

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Ronald A. Wagstaff "Exploitation of fluctuations to enhance target detection and to reduce clutter and background noise in the marine environment", Proc. SPIE 2742, Targets and Backgrounds: Characterization and Representation II, (17 June 1996); https://doi.org/10.1117/12.243005

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