SpectrumDetectionBasedOnSNR

说明：  实现k均值聚类算法，本算法可以随机设置初始测试集，也可以随机选取初始类。(K means algorithm The algorithm can set intial data set randomly。also can randomly choice initial data cluster )

实现视频每一帧的读取，并实现视频的镜头分割(shot detection and segmetation)

说明：  基于Matlab的用Prim算法求解最小生成树问题(Prim-based algorithm using Matlab' s minimum spanning tree problem)

For using this code need to use signal toolbox and general toolbox in your matlab Inpainting using sparse regularization. Consider the pepper image with many missing pixels. Assume that the image is noisy-free. (a) Inpaint the image by using orthogonal wavelet sparsity. (b) Inpaint the image by using a different sparsity prior. Based on the outputs, it is clear that the inpainting result obtain by Sobolev is much better than other methods (i.e. Orthogonal wavelet sparsity and Invariant wavelet sparsity).

To do scrambling and inverser scrambling of array using a key (seed)

说明：  2012年美国大学生数学建模竞赛B题程序(MCM2012B answer)

用雅克比迭代法解椭圆型方程，这是椭圆型方程的差分解法。见于孙志忠编的《偏微分方程数值解法》的p41例题( Solutions of Elliptic Equations with Jacques iterative method, which is the solution of elliptic differential equations. Seen SUN Zhi-zhong series "Numerical Solution of Partial Differential Equations" examples of p41)

本代码可以根据给定的小区数目和小区半径生成网络拓扑结构，并返回基站位置坐标(This code can be based on the given cell number and cell radius generated network topology, and return to the base station coordinates)

直接序列扩频，在matlab上的程序，及其仿真图，希望可以为matlab入门的人有所启发。(Direct Sequence Spread Spectrum on matlab program, and simulation map, hoping to inspire people to matlab entry.)

求解Lambert问题，两点边界值问题。详细使用方法在程序里(The Lambert problem solving two-point boundary value problem. Details to use in the program)