lexial

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.)

This is a function that simulate the Alamouti Space-Time scheme and plot a BER vs SNR graph.

这是一个决策树的matlab实现，已经测试通过(This is a matlab implementation of decision tree, have the test pass)

visual c++ matlab图像处理与识别实用案例精选，帮助我们学习(visual c++ matlab image processing and recognition of practical case selected to help us learn)

This function requires the input of a 2D matrix containing intensity values (double) corresponding to the x-ray scattering image (‘imagemat’). It returns I(q) vs. q in matrix ‘IvsQ’. It loads the experimental parameters saved in A.1. Start and end pixel counts can be adjusted as needed. It is important to resize matrices ‘allpixels’ and ‘sortedpix’ accordingly.

模仿人眼的视觉注意机制，以图像中的稀少点和对比度为特征，求出视觉注意点。(Mimic the human eye visual attention mechanism to image point and a contrast ratio of rare characteristics, find the point of visual attention.)

波形转换模型建立程序，没有解压密码，可直接使用(waveform conversion process model, not extracting passwords can be used directly)

A PHOTOVOLTAIC PANEL MODEL IN MATLAB/SIMULINK

对不同距离的雷达回波进行脉冲压缩处理，观察脉冲压缩后的回波信号，分析个参数对其的影响(Distances for different pulse compression radar echo , the echo pulse compression observed signal parameters and the effects of )

自适应滤波，一种降噪滤波的好算法，被多篇论文证明能够有效预处理信号。(adaptive-filtering method)