myclock07

sdes based encryption.it is a simplified version of des algorithm

说明：  利用双线性变换法设计一个级联型的椭圆IIR滤波器，对一段含噪语音信号进行滤波去噪处理并根据滤波前后的波形和频谱分析滤波性能。本课程设计仿真平台为MATLAB7.0，开发工具是M语言编程。首先在Windows下用录音机工具录制一段语音信号，并人为加入一单频噪声，然后对信号进行频谱分析以确定所加噪声频率，并设计滤波器进行滤波去噪处理，最后比较滤波前后的波形和频谱并进行分析。(Bilinear transformation method is used to design a cascade elliptic IIR filter, for a period of noise speech signal filtering denoising processing and according to the waveform and spectrum analysis of filtering performance before and after filtering. This course design simulation platform for the MATLAB7.0, development tools is M language programming. First under Windows tool to record a voice signal, a tape recorder and deliberately added a single frequency noise, and then the signal to determine the added noise frequency spectrum analysis, and design the filter for filtering denoising processing, finally compared before and after the waveform and spectrum of filtering and analyzed. )

说明：  网上牛人matlab实现 emd算法,可以下载尝试一下的(matlab'emd eemd code)

微波工程史密斯圆图计算，演示。根据提示在输入框中输入相应数值，在输出框中有相应输出值。(Smith microwave engineering plans, the demonstration. According to the input box prompts the corresponding values in the output of a corresponding output value box.)

说明：  模拟调制的MATLAB仿真，可以参考一下(MATLAB simulation of analog modulation, you can refer to)

用matlab求两个向量的相关函数，可以直接执行(Using matlab for the correlation function of two vectors can be directly executed)

find the center of gravity of speech singal.

就是用MATLAB绘制,一个颜色编码的混淆矩阵。(MATLAB is used to draw a color coded confusion matrix.)

基本的调制解调程序集matlab在simulink下的仿真(Modem basic assembly of matlab simulation in simulink)

一些MATLABLIANXI程序，帮助初学者学习 ，一些MATLABLIANXI程序，帮助初学者学习(matlab program)