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说明：  非常好的数学建模资料，有matlab实现，数学建模与数学实验（第3版）课件+matlab(Mathematical modeling of very good information, there is matlab implementation, mathematical modeling and mathematical experiment (3rd Edition) courseware+ matlab)

使用mat2huff进行编码，进一步说明霍夫曼编码的压缩性能！显示其压缩比例，以及其图像的对比！(Encoded using mat2huff to further clarify the Huffman coding compression performance! Shows the compression ratio and the image contrast!)

Description All the filters have needed neighbor data the current pixel in the image,here this function(res_window=cover_window(how many neighbor value for row ,how many neighbor value for column ,input image) produce the result( res_window(row,col,total size)) input inp_img=2d data(row * col) w=cover size w=[3 3] = 3x3 cover pixel generation output o_img=result 3d o_img(w(1),w(2),r*col) if inp_img=[1 2 3 4 5 6 ] w=[3 3] Soloution it will construct new image new_img=[0 0 0 0 0 0 1 2 3 0 0 4 5 6 0 0 0 0 0 0] result o_img(:,:,1)=[0 0 0 0 1 2 0 4 5] o_img(:,:,2)=[0 0 0 1 2 3 4 5 6] finally o_img(1:3,1:3,6) example a=imread( pears.png ) b=rgb2gray(a) c=cover_window( b,[3 3]) 3x3 window construction

This file is the programs of (chapter 6) of book (Modeling the Wireless Propagation Channel a Simulation Approach with MATLAB) which is related to shadowing and multupath. It helps you to simulate wireless channel.

这是turbo编码的matlab演示程序，可以在各种matlab版本中运行，大家试试吧(This is the turbo coding Matlab demo program, in various versions of Matlab run, we try it)

说明：  有利于初学者MATLAB编程学习有利于初学者MATLAB编程学习有利于初学者MATLAB编程学习(it will help you to study MATLAB PROGRAM it will help you to study MATLAB PROGRAM it will help you to study MATLAB PROGRAM)

调制信号在systemview环境下的仿真(Modulated signal simulation environment under systemview)

此文章主要是基于matlab的通信仿真分析。(This article is based mainly on the communication matlab simulation analysis.)

funç ã o que implementa o contrast strech

说明：  利用matlab调用ansys模块进行计算，包含有例子(Using MATLAB to call ANSYS module for calculation, including examples)