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qpsk matlab simulink receiver and transmitter. Quadrature Phase shift keying

设r是f(x) = 0的根，选取x0作为r初始近似值，过点（x0,f(x0)）做曲线y = f(x)的切线L，L的方程为y = f(x0)+f (x0)(x-x0)，求出L与x轴交点的横坐标 x1 = x0-f(x0)/f (x0)，称x1为r的一次近似值。过点（x1,f(x1)）做曲线y = f(x)的切线，并求该切线与x轴交点的横坐标 x2 = x1-f(x1)/f (x1)，称x2为r的二次近似值。重复以上过程，得r的近似值序列，其中x(n+1)=x(n)－f(x(n))/f (x(n))，称为r的n+1次近似值(Let r is f (x) = 0 root, select the initial approximation x0 as the r, over point (x0, f (x0)) to do the curve y = f (x) the tangent L, L the equation y = f ( x0)+ f ' (x0) (x-x0), find the intersection of L and the x-axis of abscissa x1 = x0-f (x0)/f' (x0), x1 is called an approximation r. Through points (x1, f (x1)) to do the curve y = f (x) the tangent, and find the intersection of the tangent with the x-axis of abscissa x2 = x1-f (x1)/f ' (x1), x2 is called r the second approximation. Repeat the process, get an approximation of the sequence r, where x (n+1) = x (n)-f (x (n))/f ' (x (n)), as an approximation of r n+1 times)

这是Matcom的相关安装资料，这个软件安装起来挺麻烦，如果没有指导，很难正常完美的安装(Matcom related installation information, this software installation is very troublesome, if not guidance, it is difficult to normal and perfect installation)

This program is used to Simulate the performance of (n,k)Reed Solomon code in AWGN channel with plotting the results and compare with the theoretical performance of this code in AWGN channel. The program also print the SNRdB, absolute snr ,simulated probability of error, exact probability of error in each steps

说明：  使用matlab编程实现OFDM的收发一张图片，查看相关性能！(use Matlab programming OFDM Transceiver a picture to see the relevant performance!)

This is a kalman filter arithmetic using Matlab. A small example of insipid kalman filtering, and relatively foundation, can help beginners, combining with example study.

基于协作的认知无线电中，AF，DF协议及未采用协作分集技术的中断概率的实验仿真程序(In collaborative spectrum sensing cognitive radio, AF, DF protocol and did not use cooperative diversity outage probability experiment simulation program)

RLS Channel estimation of MIMO-OFDM System

MIMO-OFDM系统无线衰落信道容量分析，适合做无限通信的研究(Characterizing the Statistical Properties of Mutual Information in MIMO Channels)

iteration des berfungsi untuk apa aja asal donlod