OFDMsource

这是一本支持向量机的书籍，这本书在支持向量机书籍的中文书籍中具有一定权威。(This is a support vector machine books, this book is a book in support vector machine has a certain authority of the Chinese-language books.)

双载波的matlab解调程序，两个载波频率时的，频率是2M的解调，解调输出中幅度和相位均从第四个开始重复输入序列；

说明：  伪随机码或称PN码，是扩频通信中不可缺少的一种序列。扩频通信，简单的说来就是通过一组相关性很强的伪随机序列，使原有的信号按照伪随机序列的特性出现。从波形上看，原有信号完全淹没于随机的噪声中，达到隐藏信号和抗干扰的目的。接受方只要有相同的伪随机序列，就可以通过伪随机序列很强的相关性将信号还原出来。而m序列，是扩频系统中最长用的伪随机序列。下面的代码就是基于matlab的生成m序列的代码，通过改变初始多项式的值，就可以生成不同阶数的m序列。(Pseudo-random code or PN code, spread spectrum communication is indispensable to a sequence. Spread spectrum communication, a simple to say that the adoption of a group of highly related to pseudo-random sequence, so that the original signal in accordance with the characteristics of pseudo-random sequence there. From the wave point of view, the original signal completely submerged in the random noise to hide the purpose of signal and interference. As long as the recipient has the same pseudo-random sequence, the pseudo-random sequence can be a strong correlation to restore the signal out. And m sequence spread spectrum system is the longest of the pseudo-random sequence used. The following code is generated based on m sequences of matlab code, by changing the value of the initial polynomial, we can generate a different order of the m sequence.)

说明：  本压缩文件包含了用MATLAB做的几种fir滤波器，功能强大，可用性强！(This compressed file contains the use of MATLAB to do some fir filter, powerful, and the availability of strong!)

基于dct的图像水印实现，用MATLAB哟(watermark based on DCT)

基于瞬时频率的码元速率估计，mpsk函数和test_signal函数都在基于小波变换压缩包内(Symbol rate estimation based on instantaneous frequency, qpsk function and test_signal functions in the compression package based on wavelet transform)

矩量法计算导体圆环的电容计算matlab程序(Moment Method Calculation of the capacitance calculation of conductor ring matlab program)

求分数阶传递函数的阶跃响应的matlab程序(Step response of the transfer function of Fractional matlab program)

基于遗传算法的多目标优化，matlab开发(Based on genetic algorithm for multi-objective optimization, matlab development)

Simulation of Conventional AM modulation (including Envelope detector)