get_roots

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.)

曲波变换的工具箱，里面有一些去躁的demo程序，希望大家喜欢(Qu Bo Transform toolbox, which has some of the demo program to impatient, I hope everyone likes)

This program will help you for Fitting Survival Probability Models article

《MATLAB小波分析超级学习手册》随书光盘，《MATLAB小波分析超级学习手册》对小波分析在MATLAB中的应用进行了详细的介绍，全书以小波为主题展开叙述，不仅对小波理论有详细的介绍，而且将理论与实际相结合，列举了数百个利用小波方法来处理信息的综合算例，这些算例均可在MATLAB R2013a版本中运行。(" MATLAB wavelet analysis super-learning Handbook" CD with the book, " MATLAB wavelet analysis super-Learning Handbook" on wavelet analysis in MATLAB applications are described in detail, the book describes the wavelet for themes, not only for wavelet theory is described in detail and will combine theory and practice, lists hundreds of ways to process information using wavelet comprehensive examples, these examples can be run in MATLAB R2013a release.)

空时分组编码(STC)就是在空间域和时间域两维方向上对信号进行编码,是MIMO技术里面十分重要的一个环节。(Space-time block coding (STC) is in the space domain and time domain two-dimensional direction of the signal coding, MIMO technology, which is very important aspect.)

精通MATLAB数字图像处理与识别 chapter6 代码(Proficient in MATLAB digital image processing and recognition chapter6 code)

matlab编写的读取IGS广播星历文件（.n）文件的程序。读取完成后将数据分类储存为cell格式和struct格式。(Matlab prepared to read IGS broadcast ephemeris file (.N) file procedures. After reading is finished, the data is sorted into cell and struct format.)

说明：  基于matlab。利用FFT计算信号的频谱并与信号的真实频谱的抽样比较。 脚本文件T2F.m定义了函数T2F，计算信号的傅立叶变换。(Based on matlab. Calculated using FFT frequency spectrum and the true spectrum of the signal sample comparison. Script file defines a function T2F.m T2F, calculate the Fourier transform of the signal.)

粗差剔除程序，采用多项式拟合的方法对时间序列中的粗差进行剔除(Excluding gross error process, using polynomial fitting method of time series of gross errors culling)

本文详细介绍了matlab下的编程风格指南，对于规范编程有一定的指导意义(the code style of matlab)