意信号卷积的运算,并且绘制图象，分析了该信号的时域、频域、倒谱，循环谱等,Gabor小波变换与PCA的人脸识别代码。- Convolution operation is intended to signal and image rendering, Analysis of the signal time domain, frequency domain, cepstrum, cyclic spectrum, etc. Gabor wavelet transform and PCA face re