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闻亭公司培训DM642的内部资料一共有五天，里面包含讲解的ppt,文档，开发工具，课堂源码例子等。这是第一天内容.(Wintech DM642 training information, total of five parts, which contains explanations ppt, documentation, development tools, source code examples of class and so on.This is the first part. )

This disk contains numerical methods software coded in MATLAB. The algorithms are described in the text NUMERICAL METHODS for Mathematics, Science, and Engineering.FORTRAN

DCT域音频水印算法代码，用于音频媒体版权的保护(Audio Watermarking Algorithm for DCT-domain code)

声音采集处理，涉及频率，变换等，属于入门级别程序(Sound acquisition and processing, involving frequency, transform, are entry-level program)

纹理特征提取的matlab源代码，用灰度共生矩阵做的，最终得到一个8维的纹理特征向量。(Texture feature extraction matlab source code, the GLCM do eventually get an 8-dimensional texture feature vector.)

rough set eighbrohood

这是一个简单的模糊逼近(matlab)源代码，可供参考(This is a simple fuzzy approximation (matlab) source code is available for reference)

说明：  这是一个关于自相关算法及功率谱的仿真的源代码，可以供matlab初学者学习，以便今后在做相关研究中有所帮助。(This is the one on self-correlation algorithm and power spectrum of the simulation source code can be used for matlab beginners to learn to do research in the future help.)

Generate Rayleigh fading

说明：  窗函数法的FIR数字滤波器设计 matlab(Window function method of FIR digital filter design matlab)