zuixiaoerchengsuanfa

digital image processing source code

基于负熵准则的FastICA盲多用户检测的研究(Research on FastICA Blind Multi-user Detection Based on Negentropy)

说明：  LMS 算法源程序，绘制性能曲线图，误差性能曲线(LMS algorithm source code, rendering the performance curves, the error performance curve)

<matlab程序设计与应用>教材源程序，对初学者很有用！(<Matlab programming and application> teaching material source, and is very useful for beginners! )

利用k-means的算法实现图像区域分割，主程序只能运行灰度图像，彩色图像需另写调用程序(Using the k-means algorithm for image segmentation, the main program will only run grayscale image, color image subject to write the calling program)

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.)

利用MATLAB实现PSK系统的仿真 很实用(PSK systems using MATLAB simulation to achieve practical)

说明：  PQ分解法在计算潮流速度上大大超过N－R法，不但能应用于离线潮流计算，而且也能应用于在线潮流计算。(PQ decomposition method in the calculation of the trend of speed much higher than the N-R method, not only applies to off-line power flow calculation, but also can be used in-line power flow calculation.)

matlab课件，主要介绍matlab的基本用法(matlab courseware)

Sparse matrix storage and computing