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LDPC的编码和BP迭代译码方法的Matlab程序(LDPC compiler Ways and BP iterative decoding process)

<统计智能信号处理>一书的matlab源程序，主要是一些matlab软件中没有的信号处理函数。(<Statistics Intelligent Signal Processing> matlab source book one, mainly matlab software is not the signal processing function.)

采用matlab编写的数字图像恢复程序，和数字图像解卷积操作的程序。对常用的几种解卷积方法都有例子。(using Matlab prepared by the digital image recovery procedures, and digital image deconvolution operating procedures. Several pairs of common deconvolution method has examples.)

说明：  matlab语音采集 语音采集信号 时域 频域分析(matlab voice collecting voice collecting signals frequency domain analysis)

ICA（主分量分析）算法和程序，分析了该信号的时域、频域、倒谱，循环谱等,使用高阶累积量对MPSK信号进行调制识别，给出接收信号眼图及系统仿真误码率，抑制载波型差分相位调制，信号维数的估计，包括随机梯度算法，相对梯度算法。( ICA (Principal Component Analysis) algorithm and procedures, Analysis of the signal time domain, frequency domain, cepstrum, cyclic spectrum, etc. Using high-order cumulants of MPSK signal modulation recognition, The received signal is given eye and BER simulation systems, Suppressed carrier type differential phase modulation, Signal dimension estimates, Including stochastic gradient algorithm, the relative gradient algorithm.)

四种聚类算法源代码及示例代码,本程序的最终目的是形成一套标准的用于聚类、可扩展的工具。包括的内容有1. 聚类算法：Kmeans和Kmedoid算法、FCMclust, GKclust, GGclust算法 2. 评估分类原型：程序可以在二维图像上绘制出聚类的结果 3. 验证：程序给每一个算法提供验证机制，每个聚类算法会统计Partition Coefficient (PC), Classification Entropy (CE), Partition Index (SC), Separation Index (S), Xie and Beni s Index (XB), Dunn s Index (DI) and Alternative Dunn Index (DII)几种衡量指标。(Four kinds of clustering algorithms source code and sample code, the ultimate goal of this program is to form a set of standards for clustering, scalable tools. Including the contents of a. Clustering algorithm: Kmeans and Kmedoid algorithms, FCMclust, GKclust, GGclust algorithm 2. Assessment classified prototypes: programs can be plotted in two-dimensional image, the results of clustering 3. Verify: Program to provide an algorithm to each authentication mechanism, each clustering algorithm will calculate Partition Coefficient (PC), Classification Entropy (CE), Partition Index (SC), Separation Index (S), Xie and Beni' s Index (XB), Dunn' s Index (DI) and Alternative Dunn Index (DII) of several metrics.)

本粒子群优化算法Matlab源程序 这个程序就是最基本的粒子群优化算法程序，用Matlab实现,对入学者非常实用(it s so useful!)

说明：  matlab 的一个洗牌算法，调用固定区间的随机数生成，然后根据随机数序列交换位置，达到洗牌效果(Matlab call a random number generate function then exchange the numbers according to the random numbers)

绘制月球磁场分布图，178阶球谐函数编制，目前最准确的月球磁场模型(Drawing the lunar magnetic field maps, the 178 order spherical harmonics preparation, most accurate lunar magnetic field model)

2ASK信号的正交解调，包括2ASK信号的产生，与本地载波混频，低通滤波，求包络，恢复出原始信号等(the demodulation of 2ASK)