重要参数的提取，这个有中文注释，看得明白，分析了该信号的时域、频域、倒谱，循环谱等,基于matlab GUI界面设计,用于建立主成分分析模型。- Extract important parameters, The Chinese have a comment, understand it, Analysis of the signal time domain, frequency domain, cepstrum, cyclic spectrum, etc. Based on matlab GUI interface design, Principal component analysis model for establishing.