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kock fractal drawing

拉丁超立方抽样，调用方式如下：S=lhs(m,dist,mu,sigma,lowb,upb) m: a scalar,the number of sample points dist: A row with distribution type flags of basic random variables the value of the flag can be 1 (for uniform distribution, 2(for normal distribution), 3(for lognormal) and 4(for extreme type 1). mu: A row vector comprising the mean value of basic random variables. sigma: A row vector with its length equaligng to mu,including the standard deviation of basic random variables. lowb: a row vector with its elements are the lower bound of the sampling interval upb:a row vector with its elements are the upper bounds of the sampling interval dist,mu,sigma,lowb,upb must have the same length. Output argument S: sampling point matrix, of which each row is a sampling point.(code of Latin Hypercube Sampling)

4-ary LDPC matlab code

说明：  matlab 功能工具 matlab 功能工具(matlab functions matlab function tool tool)

a neural network,Recursive SOM and Marge SOM ,can be use for time series and data fit.(a neural network, Recursive Marge SOM and SOM. can be use for time series data and fit.)

BPSK modulation in Rayleigh channel

特征提取代码，提取pca_sift特征，用于图像特征提取，图像配准或匹配，可供做这方面研究的同学参考。(feature extraction image matching)

迭代加权二范数算法,又称FOUCSS，一种求解基于p范数的压缩感知模型算法(FOCUSS algorithm)

振动理论中运用单自由度系统的实际例子来列出微分方程并使用ode45进行计算解答(Vibration theory using practical examples to list a single degree of freedom system differential equations and calculations using ode45 answer)

基于谱减法的语音增强算法，谱相减法及其变形方法总体上运算量较小，容易实时实现，增强效果也较好，是目前最常用的一种方法(Spectral subtraction based speech enhancement algorithm, spectral subtraction method and the deformation of the whole volume of the smaller operations, easy real-time implementation, and enhance the results would be better, is the most commonly used in a way)