20130903

使用matlab的simulink工具 仿真LTE中的Turbo编码器(Simulating the Turbo_encoder in LTE via the simulator of matlab )

说明：  matlab下gabor滤波算法,可以提取图象纹理特征的经典方法之一(under Matlab filtering algorithm can extract image texture features one of the classic methods)

matlab的电子教案，希望对学习数学建模的人有所帮助，尤其是学习matlab(matlab electronic lesson plans, I hope to learn mathematical modeling help people, especially the learning matlab)

由设计要求可知，wp<=0.2π，允许误差幅度小于1dB，ws>=0.3π内衰减应大于15dB。为了验证数字滤波器的实际滤波功能，设计程序时，把输入序列定为验证函数x（t）=4sin（100πt）以及x（t）=4sin（200πt）和x（t）=4sin（400πt）。又因为Ts=1.25ms，T=80ms，故采样点为64，即N=64，所以当M=6，可以同时调试并验证程序的滤波功能。(Seen by the design requirements, wp < = 0.2π, allow a margin of error of less than 1dB, ws> = 0.3π within attenuation greater than 15dB. In order to verify the actual filtering function of the digital filter design program, the input sequence as validation function x (t) = 4sin (100πt) and x (t) = 4sin (200πt) and x (t) = 4sin (400πt) . And because Ts = 1.25ms, T = 80ms, so the sampling points is 64, that is N = 64, so when M = 6, can debug and validate filtering program.)

Matlab Image processing ztransformLPF

Matlab基本指令大全，入门必会指令！(Matlab basic commands Daquan, entry will be instructed!)

This M-File imports data from binary *.dat files, created with PSpice 6.0 (DOS), 9.1 (Student), and 10.0.3. If you are using newer versions of PSpice, you might need to adjust the code. (This M-File imports data from binary*.dat files, created with PSpice 6.0 (DOS), 9.1 (Student), and 10.0.3. If you are using newer versions of PSpice, you might need to adjust the code. )

comsol仿真计算发射和反射波，并在第一和第二衍射级作为入射角为一个导线栅的电介质基片上的角度的功能的衍射效率。平面波的入射角扫从垂直入射到掠入射。本申请还示出了用于发病的一个选定角度的多个光栅周期的电场范图。(This application computes diffraction efficiencies for the transmitted and reflected waves and the first and second diffraction orders as functions of the angle of incidence for a wire grating on a dielectric substrate. The incident angle of a plane wave is swept normal incidence to grazing incidence. The application also shows the electric field norm plot for multiple grating periods for a selected angle of incidence.)

说明：  l曲线的岭参数估计确定相关参数。。。。。。。。。。。。。。(The ridge parameter estimation of the L curve determines the relevant parameters.)

基于LMS算法的自适应均衡器!!!!!!!!!!!!!!!!!!(LMS-based adaptive equalizer algorithm)