AnIntroductiontoLDPCCodes

FIR滤波器的频率抽样法,对照胡广书教师的教材例子进行了实现(FIR filter frequency sampling method,according to the example of Hu Guangshu s book《Digital Signal Processing》)

In Matlab, pcolor won t do a checkerboard square centered on the datapoint, so instead, this forces it into centering the points.

返回从不同数组中取数据的组合 比如输入两个数组{1 2} {3 4}， 返回值为 {1 3} {1 4} {2 3} {2 4}(Back to take a combination of data from different array such as input two arrays {12} {34}, return value {13} {14} {23} {24})

经验模态分解，matlab实现，用于信号的降噪处理，提取特征值处理等经验模态分解，这是用汉语注释的EMD程序，很不错的。％ 语法 ％ IMF = EMD(X) ％ IMF = EMD(X,..., Option_name ,Option_value,...) ％ IMF = EMD(X,OPTS) ％ [IMF,ORT,NB_ITERATIONS] = EMD(...) (This is annotated in Chinese EMD procedures, very good. Syntax IMF = EMD (X) IMF = EMD (X ,..., Option_name, Option_value ,...) IMF = EMD (X, OPTS) [IMF, ORT, NB_ITERATIONS] = EMD (.. .(Empirical mode decomposition, matlab, used in signal noise reduction processing, extraction of characteristic value processing, etc)

球面谐波函数的matlab实现，图形显示谐波变换后结果(Spherical harmonic function matlab realize, graphic display harmonic transform result)

本程序是计算深海远场情况下的声源定位，首先要编译海洋环境文件（包含阵元信息），利用Krakren程序计算本征函数和本征模态，再利用本程序的子程序计算拷贝向量，然后合成声源信号，最后根据匹配场的程序进行匹配定位，由于数据量比较大，计算区域如果选的比较大的话，计算时间就比较长，酌情选择。(This procedure is to calculate the far-field sound source localization in case of deep sea, we must first compile the marine environment file (containing the array element information), use Krakren program to calculate the intrinsic function and the intrinsic mode, and then use a subroutine to copy the program to calculate the vector then synthesized excitation signal, the final match to locate the matching field program, because a large amount of data to calculate the area if the election is relatively large, the calculation time is relatively long, discretionary selection.)

给创新工场求职者的一封信 有兴趣的看一下(Innovative workshops to job seekers interested in a look at a letter)

Numerical analysis Numerical Integration Toolbox MATLAB Toolbox for 1-D, 2-D, and n-D Numerical Integration

说明：  详细的偏微分方程的matlab求解步骤与程序说明。(detailed PDE soler ,using PDE tools and codes.)

PSO 工具箱，粒子群优化测试，有具体的使用方法。调试简单，易懂。(Particle Swarm Optimization)