SLM_PTS_CHIPPING

基于元胞自动机的沙堆模拟程序，写得非常好。。(Cellular automation-- sand pile program.)

code for sattelite calculaton

8PSK信号调制，基于matlab源代码。并计算误码率(8 PSK modulation signal, based on the matlab source code. And calculate the error rate)

四通道表面肌电信号活动段检测方法（通过能量值）(action detection ways of four-channel sEMG(by energy value))

船舶运动及控制建模，基本上各个程序都有，方便实用。(Ship motion and control model, various programs have substantially, convenient and practical.)

关于Matlab的课件，里面含有数学建模的基础知识，对于数学建模的了解是很有帮助的(Courseware on Matlab, which contains the basics of mathematical modeling, mathematical modeling for understanding is helpful)

Relief算法中特征和类别的相关性是基于特征对近距离样本的区分能力。算法从训练集D中选择一个样本R，然后从和R同类的样本中寻找最近邻样本H，称为Near Hit，从和R不同类的样本中寻找最近样本M，称为Near Miss，根据以下规则更新每个特征的权重： 如果R和Near Hit在某个特征上的距离小于R和Near Miss上的距离，则说明该特征对区分同类和不同类的最近邻是有益的，则增加该特征的权重；反之，如果R和Near Hit在某个特征上的距离大于R和Near Miss上的距离，则说明该特征对区分同类和不同类的最近邻起负面作用，则降低该特征的权重。(The correlation between feature and category in Relief algorithm is based on distinguishing ability of feature to close sample. The algorithm selects a sample R from the training set D, and then searches for the nearest neighbor sample H from the samples of the same R, called Near Hit, and searches for the nearest sample M from the sample of the R dissimilar, called the Near Miss, and updates the weight of each feature according to the following rules: If the distance between R and Near Hit on a certain feature is less than the distance between R and Near Miss, it shows that the feature is beneficial to the nearest neighbor of the same kind and dissimilar, and increases the weight of the feature; conversely, if the distance between R and Near Hit is greater than the distance on R and Near Miss, the feature is the same. The negative effect of nearest neighbor between class and different kind reduces the weight of the feature.)

说明：  伪随机序列产生器－代进位反馈移位寄存器，matlab 原代码。(Pseudo-random sequence generator- on behalf of binary feedback shift register, matlab source code.)

这个是基于matlab的维纳滤波设计，其中包括两个列子，一个是在时域实现滤波器，一个是在频域实现滤波器，两个列子都是对chirp信号进行处理的(there are two examples for weina filer desined in matlab ,one is achieved in frequency domain and another is achieved in time domain.the two weina filers are desined to remove noise from chirp.)

libsvm.rar 为机器学习的开源库matlab语言(libsvm.rar open source library for machine learning matlab language)