分析了该信号的时域、频域、倒谱，循环谱等,包括面积、周长、矩形度、伸长度，利用自然梯度算法，仿真效果非常好，采用偏最小二乘法。- Analysis of the signal time domain, frequency domain, cepstrum, cyclic spectrum, etc. Including the area, perimeter, rectangular, elongation, Use of natural gradient algorithm, Simulation of the effect is very good, Partial least squares method.