中文说明： 多机电力系统仿真及其潮流计算，旋转机械二维全息谱计算，分析了该信号的时域、频域、倒谱，循环谱等,关于超声波倒车雷达测距的，用MATLAB实现动态聚类或迭代自组织数据分析，二维声子晶体FDTD方法计算禁带宽度的例子。
English Description：
Multi machine power system simulation and power flow calculation, rotating machinery two-dimensional holographic spectrum calculation, analyzes the the signal in time domain and frequency domain, cepstrum, cyclic spectrum of ultrasonic reversing radar ranging, using MATLAB to achieve dynamic clustering or iterative self organizing data analysis, two-dimensional phononic crystal FDTD method calculation examples of band gap width.