分析了该信号的时域、频域、倒谱，循环谱等,利用matlab GUI实现的串口编程例子，借鉴了主成分分析算法（PCA），欢迎大家下载学习，代码里有很完整的注释和解释。- Analysis of the signal time domain, frequency domain, cepstrum, cyclic spectrum, etc. Use serial programming examples matlab GUI implementation, It draws on principal component analysis algorithm (PCA), Welcome to download the study, Code, there are very complete notes and explanation.