cf_fun

This code is written to show the grid lines on an image

小小的最近邻算法，希望能够对大家有所帮助(Tiny nearest neighbor algorithm , hoping to be helpful to everyone)

Cleve Moler的MATLAB教材Numerical Computing with MATLAB和代码，介绍MATLAB数值方法入门，计算技巧的教材。(Numerical Computing with MATLAB is a textbook for an introductory course in numerical methods, Matlab, and technical computing.)

利用music算法，在考虑幅度误差时，对信源个数，信噪比，快拍数进行变化，观察这三个数在什么范围变化时测向的准确度高。天线测向(Music algorithm, considering the magnitude error, the number of sources, signal-to-noise ratio, snapshots number of changes observed these three the number of measured to what extent changes to the high accuracy. Antenna direction finding)

kaiming he的guided image filtering的c++代码，利用VS2010+OPENCV2.4.4实现，效果和公布的MATLAB代码相同。(C++ code for KaiMing He s guided image filtering, the result as same as matlab code which publish in the web, project is code via VS2010+OPENCV2.4.4.)

文件包括：1.计算平均最短路径；2.计算每个顶点相邻节点的平均度；3.计算每个节点的邻近中心度；4.计算节点的介数（slow）；5.计算节点的介数（faster）；6.计算每条边的介数值；7.快速迪杰斯特拉算法；8.经典迪杰斯特拉算法。(1.the average shortest path in the graph 2.the average degree of neighboring nodes for every vertex 3.computes the closeness centrality for all vertices 4.node betweenness, (number of shortest paths definition) 5.a faster node betweenness algorithm 6.edge betweenness, (number of shortest paths definition) 7.simple Dijkstra, does not remember the path 8.Dijkstra which also returns the shortest paths.)

根据德布鲁意序列，编写的MATLAB代码，生成伪随机序列，继而转化为图片，图片中一定大小的图像块与其他任何相同大小的图像块都不同。(According to the de Bruges sequence, the MATLAB code is written to generate a pseudo-random sequence, which is then transformed into a picture in which a certain size of the image block is different any other image block of the same size.)

周期高斯一介导、高斯二介导即高斯脉冲（即UWB信号）的功率谱图像，对应不同的占空比和不同的脉冲形式，随着阶数的增加中心频率右移，频谱也为高斯形式，且随着周期数增多，呈现线谱形式(Cycle Gaussian ordinary derivative, ie the Gaussian two-mediated Gaussian pulse (the UWB signal) of the power spectrum image, corresponding to different pulse duty cycle and a different form, with the increase of the order of the center frequency shifted to the right, the spectrum also Gaussian form, and with the number of cycles increased, showing the form of line spectrum)

Differential Pulse Code Modulation  DPCM is the coding method for DC coefficients

axis break used to break the x axis to a limit