Improved Method to Detect Weak Sinusoidal from Ocean Acoustic Noise based on Stochastic Resonance

G. Guo, M. Mandal, and A.A. Saha (Canada)


Stochastic resonance, bistable system, Gaussian mixture noise, signal detector


Detecting weak sinusoidal signal in oceanic noise is a challenging problem. Oceanic noise is non-Gaussian and therefore linear matched filter is not an optimal detector. Non-linear systems are generally employed to get good detection performance. Stochastic resonance (SR) is a nonlinear phenomenon that can enhance the detection of a weak signal. Bistable system has been used in the literature as a SR-detector. In this paper, we propose a practical approach to experimentally obtain the optimal parameters. Simulation results show that the SR-detector with optimal parameters provides a superior performance compared to other SR-detectors.

Important Links:

Go Back