xiaoboquzaochengxu

说明：  介绍matlabd的相关情况及应用，绍matlabd的相关情况及应用(introduction matlab)

这里面有两个程序，两个都是采用4QAM调制。不过个人觉得第一个更容易懂，因为写的很有条理。我改的那个程序就是根据这个来的。 不过在这里面有个问题就是信道系数只能是由高到低，大家可以试试，改成[0.227 0.46 0.688 0.46 0.227]这个是老师给我的仿真中常用的信道系数，这个成为归一化信道，就是系数平方和为1. 第二个程序没有涉及到信道系数，但是这个程序当中，在128个子载波中，前后有32个空载波，这个在OFDM中也是经常用的，这样可以降低误码率。 (And there are two programs, two are based on 4QAM modulation. But personally feel that the first is easier, because the writing is organized. I changed that procedure is based on the past. However, there is a problem in that there is only channel coefficients from high to low, we can try and change into [0.227 0.46 0.688 0.46 0.227] This is the teacher gave me the simulation channel coefficient commonly used, this became normalized channel, is coefficient of the square and is 1. The second program is not related to channel coefficients, but this program which, in the 128 sub-carriers, the before and after the 32 air carriers, the in OFDM is also often used, which can reduce the error rate.)

数字通信系统QAM仿真程序，基于MATLAB。(QAM digital communication system simulation program, based on MATLAB.)

数字调制解调的MATLAB仿，包括4qam,8qam，16qam,64qam的调制和解调程序(Digital modem imitation of MATLAB, including 4qam, 8qam, 16qam, 64qam process of modulation and demodulation)

matlab计算DNA序列频谱的改进算法(improved algorithm matlab calculated spectrum of DNA sequences)

分数阶傅里叶集成算法，matlab语言，实测，好用！(integrated algorithm about Frft, matlab code, have been tested, the results are right.)

方程求根的MATLAB程序，包括各种数值方法，如黄金分割法，联合法等(Equation Roots of MATLAB programs, including a variety of numerical methods, such as the golden section method, the joint law)

使用matlab产生混沌时间序列的源代码(use Matlab chaotic time series generated source code)

1、用for和if语句求出供求函数以及稳定时的产量和价格。 2、用多重for循环语句和plot语句画出蛛网模型。 3、制作动画语句。 (1, with for and if statements when you find a stable supply and demand functions and production and prices. 2, with multiple plot statement for loop and draw the cobweb model. 3, animation statements.)

load flow study programme using gauss siedal method for infinite iteration