Research on the Nonlinear Square Wave Filter Based on Concatenation Stochastic Resonance

The stochastic resonance characteristic is introduced in this article. Based on the characteristic of the cascaded bistable stochastic resonance systems, a non-linear low-pass filter characteristic can be revealed due to the energy transfer mechanism from high frequency area to low frequency area. The nonlinear lowpass filter circuit was formed according to the principle of the cascaded stochastic resonance. Some examples are given to identify the performance of the concatenation stochastic resonance nonlinear filter.