pso

DS-CDMA仿真程序,有大量注释,很值得一看,全面的讲解了CDMA的原理.(DS-CDMA simulation program, has a large number of notes, it is worth a visit, a comprehensive explanation of the principle of CDMA.)

说明：  P.S.O相关源代码，对PSO初学者有较好的示例作用。(PSO-related source code, the PSO has a good example of the role of novice.)

验证可用，基于欧几里得距离的聚类分析，小波包分析提取振动信号中的特征频率。( Verification is available, Clustering analysis based on Euclidean distance, Wavelet packet analysis to extract vibration signal characteristic frequency.)

计算循环平稳信号的4累积量的快速算法，希望对大家有所帮助(Cyclostationary signals calculated cumulant 4 fast algorithm, and they hope to help everyone)

AdaBoost元算法属于boosting系统融合方法中最流行的一种，说白了就是一种串行训练并且最后加权累加的系统融合方法。 具体的流程是：每一个训练样例都赋予相同的权重，并且权重满足归一化，经过第一个分类器分类之后， 计算第一个分类器的权重alpha值，并且更新每一个训练样例的权重，然后再进行第二个分类器的训练，相同的方法....... 直到错误率为0或者达到指定的训练轮数，其中最后预测的标签计算是各系统*alpha的加权和，然后sign（预测值）。 可以看出，训练流程是串行的，并且训练样例的权重是一直在变化的，分错的样本的权重不断加大，正确的样本的权重不断减小。 AdaBoost元算法是boosting中流行的一种，还有其他的系统融合的方法，比如bagging方法以及随机森林。 对于非均衡样本的处理，一般可以通过欠抽样(undersampling)或者过抽样(oversampling)，欠抽样是削减样本的数目， 过抽样是重复的选取某些样本，最好的方法是两种进行结合的方法。 同时可以通过删除离决策边界比较远的样例。 (AdaBoost boosting systems dollar fusion algorithm is the most popular one, it plainly systems integration approach is a serial train and final weighted cumulative. Specific process is: Each training example is given equal weight, and the weights satisfy normalization, after the first classifiers after Calculating a first classifier weights alpha value for each sample and updates right weight training, and then the second classifier training, the same way ....... 0, or until the specified error rate training rounds, wherein the label is the calculation of the final prediction system* alpha weighted and then sign (predicted value). As can be seen, the training process is serial, and weight training examples is always changing, the right of the wrong sample weight continued to increase, the right to correct sample weight decreasing. AdaBoost algorithm is an element, as well as other methods of boosting popular systems integration, such as bagging and random forest method. For )

通信原理课程做的大作业，关于正交调制的。(communication theory courses do the work, on the orthogonal modulation.)

说明：  文件夹中内容为《MATLAB7.x数字信号处理》书中实例源代码，代码说明参见该文件夹下的“程序说明.doc”文件。(The contents of the folder as &quot MATLAB7.x digital signal processing,&quot the book source code examples, code instructions see the folder under the &quot description of the procedures. Doc&quot file.)

LTE-Advance信道预编码矩阵构造的matalb仿真程序，具有很好的使用价值。(LTE-Advance-channel pre-coding matrix simulation program constructed matalb has good value in use.)

粒子群优化算法（PSO)的简单matlab语言运行程序，求极值问题 (Particle Swarm Optimization (PSO) simple Matlab language runtime program extremum problems)

运用matlab这个软件运用递归方法运算出任意一个数的阶乘(The use of this software using a recursive method matlab computing factorial of a number of arbitrary)