souhou

SVDGUI演示了计算任何实矩阵的奇异值的步骤(SVDGUI Demonstrate the computation of the SVD. SVDGUI(A) shows the steps in the computation of the singular value decomposition of any real matrix.)

wav格式的音频中实现水印的嵌入与提取 由现成的软件超级MP3转换大师V1.20把mp3->wav 然后再由MATLAB做wav水印嵌入 (wav audio format to achieve watermark embedding and extraction of off-the-shelf software from Super Master V1.20 to MP3 conversion mp3-> wav then wav watermark embedding MATLAB to do)

说明：  蔡氏混沌同步，程序，调用十分完整，绝对好用。同机构同步系统(Chua' s chaotic synchronization, the program, call is complete, the absolute ease of use. Synchronization system with the agency)

matlab主要工具箱函数以及详细注解等等。(matlab toolbox function main, and detailed notes and so on.)

This program used to show the Performance of MC-CDMA and OFDM system in AWGN and fading channels with specified parameters given in the code .

加拿大Calgary大学的CREWES研究小组开发的matlab地震处理程序，压缩包中附有他们的教科书《Numerical Methods of Exploration Seismology》以及数据。(University of Calgary, Canada research team developed matlab CREWES seismic processing, compression package with their textbook " Numerical Methods of Exploration Seismology" , and data.)

再matlab上实现基于扩频的数字水印。图像处理(This is a simple spread-spectrum based informed watermarking implementation in MATLAB. )

水声通信面临的最困难的问题是多途干扰,其中自多途引起接收信号的幅度衰落,互多途引起接收信号的码间干扰,再加上海洋环境的高噪声背景、低的载波频率、极为有限的带宽以及传输条件的时间—空间—频率变化特性,使得通信过程十分困难。此外，水声通信试验的成本高，难度大，也为水声通信研究带来挑战。 本软件对水声信道的仿真研究很有帮助，可以产生声线图，冲激响应，声速图等仿真文件，结合Matlab画图工具绘制图像，对水声信道的模拟仿真很有帮助。(The most difficult problem faced by underwater acoustic communication is multi-path interference, which since multipath fading caused by the magnitude of the received signal, and mutual inter-symbol interference caused by multipath signal reception, plus the marine environment of high background noise, low carrier frequency , very limited bandwidth and transmission conditions of time- space- frequency characteristic such that the communication process is very difficult. In addition, the high cost of underwater acoustic communication experiment, difficult, and challenges for the study of underwater acoustic communication. This software is useful for simulation study of underwater acoustic channel can produce sound chart, impulse response, sound velocity diagrams simulation files, combined with Matlab drawing tools to draw the image of underwater acoustic channel simulation helpful.)

一些常用数值分析程序，希望对大家有所帮助。(some commonly used numerical analysis procedures, we hope to help.)

program for direct sequence CDMA