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This code draw a red rectangle aroud the face

说明：  音频水印算法实现，其中包括水印的嵌入，音频水印常用攻击，以及检测算法的实现。(Audio watermarking algorithms, including the watermark embedding, audio watermarking common attacks, and the detection algorithm.)

matlab 详细说明书，学习matlab的好帮手，包括内容，常用函数，语音信号分析，进阶的绘图功能 频道滤波 等(Matlab detailed brochures, learning Matlab's helping hands, including the contents of commonly used functions, Voice Signal Analysis, advanced mapping functions such as channel filtering)

实现图像的JPEG压缩和解压的 Matlab程序(To achieve the JPEG image compression and decompression of the Matlab program)

遗传算法matlab程序，matlan遗传算法工具箱，放在工作目录即可使用。(matlab gatool)

MATLAB仿真rake接收机，分三种方式：等增益合并，最大比合并和选择性合并(MATLAB simulation rake receiver, divided three ways: equal gain combining, maximum ratio combining and selective merge)

基于802.1a 标准下ofdm的整套仿真(the entrie simulate ofdm system program base on the 802.11a standar )

用分步法 计算 耦合非线性薛定谔方程； 主要用于高功率锁模增益光纤激光器的数字模拟； 模拟步骤分四步：光纤损耗传输、色散、非线性、增益； finding 是主程序，其它是函数 (Digital-to-analog simulation steps coupled nonlinear Schrö dinger equation is mainly used for high-power mode-locked gain fiber laser with a fractional step in four steps: the fiber loss transmission dispersion nonlinear gain finding is the main program, other functions)

OFDM系统仿真OFDM系统仿真OFDM系统仿真OFDM系统仿真(OFDM System Simulation OFDM system simulation OFDM system simulation OFDM System Simulation)

最优化方法：修正牛顿法反演粒度分布。是粒度反演算法的核心。(Fraunhofer diffraction of light intensity calculation, according to particle size, wavelength, calculated prior to the distribution of diffraction intensity.)