处理信号的时频分析，重要参数的提取，预报误差法参数辨识-松弛的思想，用MATLAB实现的压缩传感，应用小区域方差对比，程序简单，分析了该信号的时域、频域、倒谱，循环谱等,数值分析的EULER法，仿真图是速度、距离、幅度三维图像。- When processing a signal frequency analysis, Extract important parameters, Prediction Error Method for Parameter Identification- the idea of relaxation, Using MATLAB compressed sensing, Application of small area variance comparison, simple procedures, Analysis of the signal time domain, frequency domain, cepstrum, cyclic spectrum, etc. EULER numerical analysis method, FIG simulation speed, distance, amplitude three-dimensional image.