lunqun_V1.7

说明：  类循环LDPC的生成 北京交通大学 编码技术 matlab (QC_LDPC bjtu)

This is matlab code for skin detection using HSV

雷达发射线性调频信号，载频10GHz，线性调频信号带宽10MHz，脉宽5us，采样率自设，两目标距离雷达5000米和5020米 （1）模拟两个目标的回波，并进行脉冲压缩（匹配滤波），验证脉冲压缩对改善雷达距离分辨力的作用 （2）调整两个目标的间距从1米到20米，观察结果得出结论。(Radar transmitting chirp signal, carrier frequency 10GHz, chirp signal bandwidth of 10MHz, pulse 5us, sample rate set up, two goals the radar 5000 meters and 5020 meters (1) Analog two goals echo, and pulse compression ( matched filtering), verify pulse compression radar range resolution on improving the role of (2) to adjust the distance between two goals 1 meter to 20 meters, observations concluded.)

说明：  用于潮流和最优潮流计算的最新版本 对于初学者很有用(For optimal power flow calculation of trends and the latest version is useful for beginners)

小波分解与重构，单纯就是小波的分解和重构的m文件，没有其他多余没有用的文件，信号处理图像处理都很有用(Is simple wavelet decomposition and reconstruction of m documents, no other extra useless files, signal processing, image processing is very useful)

一种十字交叉阵的波束形成程序，简单明了，很有借鉴意义。(A cross array beam-forming processes, simple, useful reference.)

混合有源电力滤波器在电铁谐波抑制中的应用与仿真研究1是一片不错的论文，值得借鉴(Hybrid Active Power Filter in Electrical Railway Application and Simulation Study 1 was a good paper, it is worth learning)

matlab实例，给出了诸多matlab编程应用的例子，值得一看。(matlab example, matlab programming gives many examples of applications, worth a visit.)

一些常用的MATLAB函数，求和； 求导数； 求极限；求泰勒展开式(Some commonly used MATLAB function, summation order derivative seeking limits order Taylor expansion)

度量学习，2009年的文章和程序，LMNN,基于最优化方法的度量学习算法(Metric study of article in 2009 and procedures, LMNN, a measure of the optimization method based on learning algorithm)