hanming_code

绘制带通滤波器的图形 坐标的变换,低通到高通，带通，带阻(Band-pass filter rendering graphics coordinates transform, low pass to high pass, band-pass, band-stop)

利用MATLAB进行PCB电路板的缺陷分析。(PCB.Perform defect analysis of PCB.)

Fibonacci数列，已知一个Fibonacci数，能求出它的N值(Where Fibonacci sequence, a number of known where Fibonacci, can find its N)

matlab在工程数学方面的应用教学文档，matlab是一款功能强大的软件，可以应用于多种领域，本文档着重介绍matlab在工程数学领域的应用。(matlab engineering applications in mathematics teaching document, matlab is a powerful software that can be used in a variety of areas, this document focuses on matlab projects in the field of mathematics.)

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 )

说明：  Synthesizes coupling matrix for dual band bandpass filter

MPC860SAR源代码，包括头文件、汇编程序以及说明。(MPC860SAR source code, including the first document, and on the compilation process.)

Matlab编程实例,合适初学者学习,参考,编程,仿真,很有价值的(Matlab programming examples, suitable for beginners to learn, reference, programming, simulation, great value)

这是一个动画程序，是一个智能小车，可以自己运动的车子(This is an animation program, is a smart car, sports car you can own)

MATLAB优化工具箱使用教程，含有具体应用与实例(MATLAB optimization toolbox tutorial, containing specific applications and examples)