对信号进行频谱分析及滤波，线性调频脉冲压缩的Matlab程序,到达过程是的泊松过程，数据模型归一化，模态振动，使用大量的有限元法求解偏微分方程，LDPC码的完整的编译码。- The signal spectral analysis and filtering, LFM pulse compression of the Matlab program, Arrival process is a Poisson process, Normalized data model, modal vibration, Using a large number of finite element method to solve partial differential equations, Complete codec LDPC code.