homework(1)prog

通过本书可对pso有个全面深入地了解，为工程应用作准备(Through this book on PSO has a comprehensive and in-depth understanding for the engineering applications to prepare)

对于一幅输入图像，将产生一幅输出图像，输出图像的每个像素点的灰度值由输入像素点决定，将感兴趣特征的对比度扩展使之占据可显示灰度级的更大部分。使一输入图像转换为在每一灰度级上都有相同的像素点数，均衡化会减少灰度级数。大多数自然图像由于其灰度值分布集中在较窄的范围之内，引起图像细节不够清楚。采用直方图修正后可使图像的灰度间距拉大或使灰度均匀分布，从而增大了反差，使图像细节清楚，达到增强的目的。(For an input image, will produce an output image, the output image gray value of each pixel from the input pixel decided to expand interest in the contrast of features to make it account for more gray levels can be displayed most. Make an input image is converted to grayscale in each pixel have the same points, equalization will reduce the gray series. Most natural images because of their gray value distribution concentrated in a narrow range, causing the image detail is not clear enough. Make the image histogram revised by the gray space widening or so gray uniform distribution, thereby increasing the contrast between the image details clear objective to achieve enhanced.)

一个意大利人分享的OFDM源码,中间可能有些bug(An Italian-sharing OFDM source, the middle may be some bug)

说明：  利用matlab实现的时频分析，很好，很强大！(Using matlab to achieve the time-frequency analysis, very good, very powerful!)

自己写的一个基于肤色的人脸检测代码 用matlab做得 (face detection based on the skin colour)

《通信系统仿真原理与无线应用》系统地介绍通信系统的设计、分析和仿真方法，还提供了大量极具参考价值的仿真实例。《通信系统仿真原理与无线应用》的全部仿真程序都是采用MATLAB编写的。这不仅方便读者理解仿真的实现过程，还允许读者修改或使用这些代码段来进行自己的仿真开发。章后提供了大量的参考文献和经过精心设计的各类练习题，方便教学。此为中文翻译本。(Principles of Communication Systems Simulation with Wireless Applications is a hands-on, example-rich guide to simulating wireless communications systems. The first book to present complete MATLAB simulation models for predicting the impact of design changes, it treats every aspect of simulation: sampling, signal and system representations, filters, noise, Monte Carlo simulation, postprocessing, nonlinear and time-varying systems, waveform and discrete channels, co-channel interference, and more. It includes four detailed case studies.)

利用music算法，在考虑幅度误差时，对信源个数，信噪比，快拍数进行变化，观察这三个数在什么范围变化时测向的准确度高。天线测向(Music algorithm, considering the magnitude error, the number of sources, signal-to-noise ratio, snapshots number of changes observed these three the number of measured to what extent changes to the high accuracy. Antenna direction finding)

svpwm_MATLAB 仿真,搭建好的SVPWM模块(MATLAN SVPWM)

this is basic matlab explanation. i will upload 5documents.

system identification with least squares