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Statistical normalization of non-Rayleigh reverberation
(NATO. SACLANTCEN, 2000/02)
Low-frequency active sonar systems operating in shallow water are primarily limited by reverberation.
Horizontal array gain in shallow water
(NATO. SACLANTCEN, 1980/12)
Some results of a comprehensive model study on the use of horizontal hydrophone arrays in shallow water are presented. Well-known signal processing techniques are applied to a shallow-water sound propagation model in order ...
Reduction of low frequency active sonar clutter through image processing
(NATO. SACLANTCEN, 1997/12)
Large numbers of false clutter detections arise in the use of low frequency active sonar for the detection of low Doppler submarine targets in shallow water. Traditional detection algorithms operate individually on each ...
Single ping clutter reduction: segmentation using Markov random fields
(NATO. SACLANTCEN, 1999/03)
The use of low frequency active sonar in shallow water leads to large numbers of clutter detections. This high false alarm rate can overload automatic tracking and classification algorithms. Traditional detection algorithms ...