BF_filter

采用backfolding差分算法，去除相邻点间的噪声干扰(Difference algorithm to remove the noise between adjacent points.)

说明：  使用各种方法进行图像特征提取，对特征不明显的图像有很好的效果！(Using a variety of methods for image feature extraction, feature obscure the image of good results!)

matlab实现差分进化算法，为初级学者提供帮助(matlab differential evolution algorithm to achieve, to help junior scholars)

C++学习的相关资料，仅供自学以及交流使用。(C++ learning materials for self-learning and the exchange of use.)

1 瑞利分布实现程序 2 瑞利分布＋杂波 3 相关对数正态分布杂波 4 相关weibull分布杂波 5 相干相关K分布杂波 (1 Rayleigh distribution to achieve program 2 Rayleigh distribution+ Clutter 3 Related lognormal clutter 4 related weibull distribution clutter 5 coherent K distributed clutter)

the matlab codes for sampling audio file and filtering it.

matlab 学习matlab的一个好例子(Matlab learning Matlab a good example)

ATM skimmingia a method used by criminals to capture data from the magnetic stripe on the back of an ATM card.

说明：  （1）应用9×9的窗口对上述图象进行随机抽样，共抽样200块子图象； （2）将所有子图象按列相接变成一个81维的行向量； （3）对所有200个行向量进行KL变换，求出其对应的协方差矩阵的特征向量和特征值，按降序排列特征值以及所对应的特征向量； （4）选择前40个最大特征值所对应的特征向量作为主元，将原图象块向这40个特征向量上投影，所获得的投影系数就是这个子块的特征向量。 （5）求出所有子块的特征向量。 ((1) the application of 9 × 9 window of these images at random, a total sample of 200 sub-image (2) all sub-images according to out-phase into a 81-dimensional row vector (3) all 200 lines for KL transform vector, derived its corresponding covariance matrix of eigenvectors and eigenvalues, in descending order by eigenvalue and the corresponding eigenvector (4) a choice to 40 corresponding to the largest eigenvalue eigenvector as the PCA, the original image block to the 40 feature vectors on the projection, the projection coefficients obtained by this sub-block eigenvector. (5) calculated for all sub-block eigenvector.)

卷积码的编码和译码的matalb程序，译码算法采用viterbi算法(Convolutional encoding and decoding matalb procedures decoding viterbi algorithm using)