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这是一个讲解OFDM原理及实现的文档，文档最后附上了matlab的OFDM实现(This is an OFDM explain the principle and implementation of the document, the document was last attached matlab implementation of the OFDM)

说明：  人脸肤色检测，在转换成Ycbcr格式后用相关系数进行肤色似然度计算，检测属于肤色的像素。(Skin color detection, the conversion into Ycbcr format color by correlation coefficients calculated likelihood, detection is skin color pixels.)

kalman filter This script implements the linear filter and shows its performance On a second order under-damped LTI systems In the first part, a noisy model with two state variables is simulated and in the second part, kalman filtering is applied to estimate the real observations

日期转换的程序。可将字符型日期转换为数值型。增加了一种常用日期编码格式。建议将其作为mex使用，速度有显著提高。(Date conversion process. Date can be converted to a numeric character. Added a common date code format. Recommend its use as a mex, the speed has improved significantly.)

功率控制在CDMA移动通信系统中的作用 (The role of power control in a CDMA mobile communication system)

阶跃型折射率光纤中的模式容量和光功率分布，单模光纤的特征方程及其MATLAB数值求解，多模光纤的特征方程及其MATLAB数值求解(Step-index fiber modes capacity and optical power distribution, single-mode fiber and MATLAB numerical solution of the characteristic equation, multimode fiber and its MATLAB numerical solution of the characteristic equation)

用来求光纤的材料色散，并画出其材料色散曲线。(material dispersion)

关于倒立摆的模糊控制算法，有matlab程序进行仿真，是作业，有讲解(On the fuzzy control of inverted pendulum algorithm, matlab program simulation，it s homework。)

说明：  多种波束形成源代码，有很好的可扩展性 包括：直接相移波束形成，MVDR波束形成，music波束形成的源程序(A variety of beamforming source code, has good scalability, including: direct phase-shifting beamforming, MVDR beamforming, music beamforming source program)

打开文件中图片的简单Matlab程序代码(Open the file in the image of a simple Matlab code)