Ocean effects on time delay estimation requiring adaptation

In active sonar and in passive sonar localization, time delay is a fundamental parameter whose extraction is vital to the sonar function. The underlying time delay parameter (or parameter vector) contains information about the acoustic source (or reflector) as seen through the ocean at a receiver. T...

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Bibliographic Details
Published in:IEEE journal of oceanic engineering 1993-10, Vol.18 (4), p.367-378
Main Authors: Carter, G.C., Robinson, E.R.
Format: Article
Language:English
Subjects:
Bandwidth
Coherence
Delay effects
Delay estimation
Fourier transforms
Frequency
Marine
Oceans
Signal to noise ratio
Sonar
Underwater acoustics
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Summary:In active sonar and in passive sonar localization, time delay is a fundamental parameter whose extraction is vital to the sonar function. The underlying time delay parameter (or parameter vector) contains information about the acoustic source (or reflector) as seen through the ocean at a receiver. The ocean effects require sonar adaptation. A tutorial review of ocean effects in time delay estimation is provided, with references to benchmark work. It covers coherence, time-delay estimation, localization, time-varying time delay estimation, the complexity of the ocean environment, and depth estimation using mode matching.< >
ISSN:0364-9059
1558-1691
DOI:10.1109/48.262289