Detection of transient signals in shallow ocean using suprathreshold stochastic resonance and wavelet packet transform

Datta, V. ; Prasad, V. H. ; Anand, G. V. (2009) Detection of transient signals in shallow ocean using suprathreshold stochastic resonance and wavelet packet transform 2009 International Symposium on Ocean Electronics (SYMPOL) . pp. 87-92.

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Official URL: http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arn...

Related URL: http://dx.doi.org/10.1109/SYMPOL.2009.5664148

Abstract

In this paper, we propose the use of the phenomenon of suprathreshold stochastic resonance (SSR) in the detection of a transient signal in a noisy environment. An SSR pre-processor consisting of an array of 2-level quantizers is used to boost the SNR of the data before being transformed by a translation invariant wavelet packet transform (TIWPT). The maximum magnitude coefficient of the TIWPT output is used as a test statistic. Simulation results show that this detector performs better than a detector using a stochastic resonance (SR) pre-processor with a TIWPT detector.

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ID Code:89744
Deposited On:30 Apr 2012 20:24
Last Modified:30 Apr 2012 20:24

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