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In order to detect a weak signal under the condition of intensive noise, the signal and additive white noise were used as input of a bistable stochastic resonance (SR) system. The noise intensity and the system parameters were adjusted adaptively with particle swarm optimization (PSO) algorithm by examining the SR effect on output signal-to-noise ratio (SNR). An improved numerical solution for a bistable...
The majority of studies in saturation nonlinearities making use of periodic input signals and signal noise ratio (SNR) measures indicate the possibility of SNR gains due to stochastic resonance (SR). The paper points out that for such circumstances, the SNR measure discards some statistical information due to the saturation. When the shape of input signals is required at the output of the saturation...
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