跳频信号的迭代随机共振数字化接收

o improve the demodulation performance of frequency-hopping signals, this paper proposes a digital receiving algorithm based on the bistable stochastic resonance. With a digital sampling choice, the algorithm demodulates multiple frequency signals in one stochastic resonance system. And with the multiple iterations of signal system, the degree of conversion from channel noise to useful signal is improved. Finally, the local signal is designed to eliminate the frequency distortion in stochastic resonance system through the relevant calculation. Theoretical analysis and simulation results show that the algorithm can demodulate frequency-hopping signal and its demodulation performance superior to existing research about 2dB.