添加噪声处理，分析了该信号的时域、频域、倒谱，循环谱等,有PMUSIC 校正前和校正后的比较，Relief计算分类权重，IDW距离反比加权方法，仿真效率很高的。-Add noise processing, Analysis of the signal time domain, frequency domain, cepstrum, cyclic spectrum, etc. A relatively before correction and after correction PMUSIC, R