分析了该信号的时域、频域、倒谱，循环谱等,采用累计贡献率的方法，最大似然（ML）准则和最大后验概率（MAP）准则，双向PCS控制仿真，信号维数的估计，在matlab R2009b调试通过，从先验概率中采样，计算权重。- Analysis of the signal time domain, frequency domain, cepstrum, cyclic spectrum, etc. The method of cumulative contribution rate Maximum Likelihood (ML) criteria and maximum a posteriori (MAP) criterion, Two-way PCS control simulation, Signal dimension estimates, In matlab R2009b debugging through, Sampling　a priori probability, calculate the weight.