可实现对二维数据的聚类，分析了该信号的时域、频域、倒谱，循环谱等,一个计算声子晶体结构的一维传递矩阵法。- Can realize the two-dimensional data clustering, Analysis of the signal time domain, frequency domain, cepstrum, cyclic spectrum, etc. A one-dimensional transfer matrix method to calculate the pho