changqiang

对一个小算法应用内点法，算法比较简单，但思路明朗。值得我们学习(Algorithm applied to a small interior-point method, the algorithm is relatively simple, but Siluminglang. We can learn)

说明：  之前版本中HHT变换需要用到的函数,用于计算Hilbert谱(Functions needed for HHT transformation in previous versions)

实现Lagrange,Hermite,以及分段线性插值算法,需要用from * import *引用,如要使用lagrange, from lagrange import lagrange(Realize Lagrange, Hermite, and piecewise linear interpolation algorithm, need to quote from* import*, such as to use lagrange, from lagrange import lagrange)

说明：  ofdm技术,this simulink is about ofdm .属于无线通信类的仿真，基于MATLAB平台下(OFDM technology, this simulink is about ofdm. belonging to the wireless communications category of simulation, based on the MATLAB Platform)

利用函数MadHG生成规则LDPC码的校验矩阵H，其行重为6,列重为3,行数为列数一半(行数越大越好)，H中任意两列没有围长为4的圈，并得到H对应的生成矩阵G，可以保证mod(G*H ,2)=0。使用方法为:[H,G] = MadHG(m,n,x),x= 1(得到的G左半部分为单位阵) or 2(G右半部分为单位阵),(use function MadHG Generation rules LDPC check matrix H, re-6, series of three, out for a few half of the number (A bigger the better), H 2 arbitrary no girth of the four circles, H counterparts and with the formation of matrix G, we can be assured of mod (G* H, 2) = 0. To be used : [H, G] = MadHG (m, n, x), x = 1 (the G part of the Left Front units) or 2 (G right half of the units RUF),)

matlab实现的k均值聚类算法，能对不同维度的数据进行聚类，有测试程序，欢迎下载(k-means clustering algorithm matlab implementation, capable of clustering data in different dimensions, with a test program, welcome to download)

本程序是采用正交匹配算法实现图像LENA的压缩传感,而且该程序没有经过任何优化处理。(This program is the use of orthogonal matching algorithm for image compression LENA sensing, and the program has not been any optimization.)

audio watermarking embeddin , use algorithm DCT DWT

SMF-28折射率、群速度、材料色散、波导色散、总色散、包括SMF的基本底层参数。(SMF-28 refractive etc)

说明：  样条曲线曲面的相关理论知识，内含部分程序代码(Knowledge spline curve and surface fitting must-see, very good)