rayleigh_ofdm

Phase Locked Loop simulation

关于数字信号处理的matlab程序实现代码，有很多实用的方法，如功率谱估计的算法等等，对学习数字信号处理很有帮助(On digital signal processing matlab program implementation code, there are many practical ways, such as power spectrum estimation algorithms, etc., is helpful in learning digital signal processing)

Get reduce the size of an original sound file between half to three quarters of the initial size. The FLAC format is often used to sell music online, and as an alternative to MP3 to share when you want to reduce the file size would have

去处干涉条纹最有效的频域消除法，非常实用，效果极佳。(supress grid by frequency domain, very practical with high efficency)

说明：  A simple analytical model that predicts DSM spurious tones with arbitrary stimulus

matlab程序设计入门举例.具有简单实用的优点。比较适合初学者进行有效的自学.(Introduction to Matlab programming example has a simple and practical advantages. Suitable for beginners to effective self-study.)

聚类算法，不是分类算法。分类算法是给一个数据，然后判断这个数据属于已分好的类中的具体哪一类。聚类算法是给一大堆原始数据，然后通过算法将其中具有相似特征的数据聚为一类。这里的k-means聚类，是事先给出原始数据所含的类数，然后将含有相似特征的数据聚为一个类中。所有资料中还是Andrew Ng介绍的明白。首先给出原始数据{x1,x2,...,xn}，这些数据没有被标记的。初始化k个随机数据u1,u2,...,uk。这些xn和uk都是向量。根据下面两个公式迭代就能求出最终所有的u,这些u就是最终所有类的中心位置。(Clustering algorithm, not a classification algorithm. Classification algorithm is to give a figure, and then determine the data belonging to a specific class of good which category. Clustering algorithm is to give a lot of raw data, and then through the algorithm which has similar characteristics data together as a class. Here k-means clustering, is given in advance the number of classes contained in the raw data, then the data contain similar characteristics together as a class. All information presented in or Andrew Ng understand. Firstly, raw data {x1, x2, ..., xn}, the data is not labeled. K random initialization data u1, u2, ..., uk. These are the vectors xn and uk. According to the following two formulas can be obtained final iteration all u, u is the ultimate all these classes the center position.)

一种非常有效的用于运动模糊图像恢复的Matlab算法。保证好用，并且有pdf说明，有做图像去迷糊的同学可以看看。(An extremely effective Matlab algorithm for recovering image motion blur.)

opf最优潮流的基本程序，虽然简单，但是确实使用，适合初学者(opf OPF basic procedures, although simple, but it does use for beginners)

求解积分函数的列子，可以求sin的定积分和cos的定积分函数。(Liezi solution of the integral function, you can find the definite integral of sin and cos of the definite integral function.)