hosa

MATLAB sar 距离多普勒域成像算法，无距离徙动校正(MATLAB sar RDA imaging)

一个可以把Matlab复杂网络邻接矩阵直接转化为Pajek可以识别的网络文件（.net）很实用，学习复杂网络的可以下载(a programme that can transform the adj_matrix in matlab into .net file that pajek can recognize)

系统的模型并求出零极点形式和部分分式形式(Pole-zero programming)

使用MATLAB程序实现主成分分析算法的计算和演示代码(the matlab code for mca)

Path manually writing code, is to allow the ns2 manual routing is used, this is our experimental multichannel implementation, hoping to share.

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 )

chan算法的MATLAB代码，能够实现二维精准定位，是TDOA的常用算法(chan algorithm information, enables precise positioning of the two-dimensional, is commonly used algorithm of TDOA.)

matlab中边频的示例程序，操作简单，可直接复制，便于调用。(side frequency in matlab sample program, simple operation, can be directly copied, easy call.)

说明：  s函数编写指导的书，包括几个不错的例子。对入门的学习很有帮助(s function is to guide the preparation of the book, including several good examples. Very helpful for getting started learning)

matlab统计分析案例，经典教材，值得好好学习，对数模很有帮助(Matlab statistics, which is quite worth reading and is beneficial to mathmatical learning.)