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合成孔径雷达(SAR)的点目标仿真，由详细的原理说明。对初学入门很有帮助(Synthetic aperture radar (SAR) of the point target simulation, by the principle of detailed instructions. Entry helpful for beginners)

this code extract the feature from speech signal in many algorithms

无线传感器网络中应用leach算法来识别恶意节点和剔除恶意节点。从而保证网络系统的寿命最长。(In wireless sensor network，cluster algorithm of nodes is all effective approach and key technology to implement energy saving and flexible management．To improve security and lifetime of clustering network，a secure clustering was pro— posed based on the random and parallel cluster header election algorithm and pre—distributed key scheme．In hypothetical network model，it can elect the cluster header nodes and identify and get rid of malicious nodes，and in data telecommuni— cations，the communication security Can be achieved by using encryption algorithm and thus the network lifetime Call be prolonged．)

在Matlab中的图像哈希Toobox。 该hashingdemo执行一两个图像匹配自动测试演示了知觉。这是通过计算哈希做了两个图像的方法和比较向量中包含的哈希是一种有意义的图像(Matlab in image hash Toobox. A two images of the execution of the hashingdemo match the automatic test demo consciousness. This is done by calculating the hash hash contained in the method and comparison of the two images in the vector is a meaningful image)

利用梯度下降算法实现二分类，适合初学模式识别的人(Gradient descent algorithm using two categories, one for beginners pattern recognition)

matlab绘制指南针，能够调整位置，大小和让其旋转一定角度，很实用(Matlab to draw the compass, it can adjust the position, size, and let the rotation Angle, very practical)

说明：  三种DOA估计的仿真图，分别是常规波束形成、MVDR和MUSIC。(Simulation Diagrams of Three DOA Estimations)

求解线性矩阵不等式的程序，简单明了，有注释，对于学习LMI有很好的帮助(Procedures for solving linear matrix inequalities, simple and clear, with annotations, very good for learning with the help of LMI)

The program purikura.m frames your images into a beautiful frame. Convert your boring looking images into decorated ones using it. Automatically adjusts the bordering i.e. framing according to the image s dimensions. Save the decorated images.(The program purikura.m frames your images into a beautiful frame. Convert your boring loo king images into decorated ones using it. Autom atically adjusts the bordering i.e. framing ac cording to the image's dimensions. Save the deco rated images.)

采用matlab/simulink，简单通用电池模型及其参数测量(Using matlab/simulink, a simple generic model and its parameters measured battery)