The Multi-frequency Stochastic Resonance Detection Based on Wavelet Transform in Weak Signal
نویسندگان
چکیده
The stochastic resonance method finds its original application on solving the issue of singlefrequency signals. In this paper, a multi-frequency stochastic resonance detection method based on wavelet transform weak signal is proposed. The first wavelet transform is carried out for detaching the negative effect of weak noisy signal in multi-frequency to realize the separation of the various frequency bands, and then select the detailed signal and approximation signal of each layer signal as the input signal of stochastic resonance which realizes the detection of multi-frequency weak signal. The experimental results show that the proposed wavelet-based stochastic resonance method has successfully detected the multi-frequency weak signal.
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