强噪声背景下的信号处理，原信号频率是10.1，幅值0.2；噪声为标准白噪声，幅值为0.5；门限为0.65；取10次样，还原的信号频率为10.086-The signal processing in the background of strong noise, the frequency of the original signal is 10.1, amplitude 0.2　noise of the standard white noise, the amplitude is 0.5　threshold 0.65　10 times sample restore the signal frequency is 10.086