homework6

这可是我两年前用matlab写的第一个函数，算是处女作。 这个例子涉及三角函数的系数变换及其极坐标系绘图，以及界面和控件的颜色修改。(But I used it two years ago to write the first matlab function can be regarded as a debut. This example involves the coefficient of trigonometric function transform and its polar coordinates drawings, as well as the interface and control color modify.)

Under the circumstances of pure lag in feedback control system and the imprecision of the controlled object model, the fuzzy logic and pure lag compensation theory is used to design a Fuzzy PI-Smith control system . By the Simulink toolbox and Fuzzy logic toolbox of MATLAB, the system has been simulated. The simulation results show that the Fuzzy PI-Smith system has faster response speed and smaller overshoot than the traditional PI-Smith system.The explicit formulation of Fuzzy PI-Smith system is derived, and it lay the basis for the practical application of control algorithms.

凯撒窗的设计，采用了公式和matlab内部函数两种办法可以实现，并画图比较结果。(Kaiser window design, using the formula and internal matlab function can be achieved in two ways, and drawing the results of the comparison.)

说明：  关于图像滤波技术的代码，对图像处理中的滤波技术的学习非常有用(The code on the image filtering techniques, image processing filtering technique is very useful to learn)

matlab教学用书 Edward Neuman 版本(matlab version of teaching the book Edward Neuman)

QPSK信号生成 matlab编写的程序 并且分为i路 与q路进行(QPSK signal)

归一化椭圆函数低通滤波器零极点计算程序 自动优化 zellip 主程序(zellip main program)

ldpc_encoder 自己改过的LDPC码编码，貌似是8160,7136.好用的(ldpc_encoder MATLAB 8160,7136)

通过手动选点的图像配准程序，会弹出窗口提示进行人机交互试选点(register images through interactive point-selection )

gabor变换即小波变换，对输入的图像进行小波变换，可以用于进行图像的下一步处理，比如在人脸识别中的应用(gabor transform the wavelet transform of the input image wavelet transform, the image can be used for further processing, such as face recognition)