Post-treatments of multi-frequency analog signal processing via QDW systems

We observe more signal processing features of Stochastic resonance by using multi-frequency analog signals. When treating a multi-frequency analog signal, post-treatments confront two main problems: the waveform distortion and the residual stochastic component. We propose a recovery formula and the Hermite curve fitting to handle these problems respectively. With these methods, we provide a simulating example, of which the result is compared with the result of a lowpass filter.