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Application of parameter-induced stochastic resonance to target detection in shallow-water reverberation

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6 Author(s)
Xu, Bohou ; Department of Mechanics, The State Key Laboratory of Fluid Power Transmission and Control, Zhejiang University, Hangzhou 310027, China ; Huiquan Zhang ; Zeng, Lingzao ; Li, Jianlong
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A method based on parameter-induced stochastic resonance is proposed for target echo detection in the presence of shallow-water reverberation. The signal received by the horizontal sensor array is normalized and delayed to form the input to a bistable system. The system parameters are tuned properly to maximize the detection performance based on parameter-induced stochastic resonance techniques. Considering the limitation on the length of receiving arrays, the space-time unfolding method is suggested to largely improve the detection performance.

Published in:

Applied Physics Letters  (Volume:91 ,  Issue: 9 )