基于chebyshev的水声信号分析，能量熵的计算，数值分析的EULER法，处理信号的时频分析，FMCW调频连续波雷达的测距测角，使用大量的有限元法求解偏微分方程，预报误差法参数辨识-松弛的思想。- Based chebyshev underwater acoustic signal analysis, Energy entropy calculation, EULER numerical analysis method, When processing a signal frequency analysis, FMCW frequency modulated continuous wave radar range and angular measurements, Using a large number of finite element method to solve partial differential equations, Prediction Error Method for Parameter Identification- the idea of relaxation.