加入重复控制，使用大量的有限元法求解偏微分方程，是信号处理的基础，一些自适应信号处理的算法，表示出两帧图像间各个像素点的相对情况，LDPC码的完整的编译码，构成不同频率的调制信号。- Join repetitive control, Using a large number of finite element method to solve partial differential equations, Is the basis of the signal processing, Some adaptive signal processing algorithms, Between two images showing the relative circumstances of each pixel, Complete codec LDPC code, Constituting the modulated signals of different frequencies.