tuxiangbianhuan

Low density parity check matrix(Description A program written for generating LDPC matrix in the as pattern as discussed in the research paper , " Time varying periodic convolutional codes with low density parity check matrix" by Alberto jiménez Felströ m and Kamil Sh. zigangirov IEEE Transaction on information theory vol 45 no 6 sept 1999. pages 2181-2191)

说明：  对图像dct系数的分部规律进行统计，绘图。(Dct coefficient on the image for a division of the laws of statistics, graphics.)

how to plot using fuction "meshgrid", "mesh"

地震合成记录，通过褶积模型，利用子波和反射系数求出了自激自收情况下的波形。(synthetic seismogram)

modulation demonstration of a sin wave

说明：  人工鱼群算法的matlab代码实现，优化函数(AFSA,Matlab code implementation and optimization function of artificial fish swarm algorithm)

matlab入门基础源代码，一共八个文件夹，上百个matlab源程序，对学习matlab可能会有帮助。(Getting the underlying source code matlab, might help)

一种改进的混沌算法，结合进化算法进行改进,利用logistic映射进行改进(An improved chaotic particle algorithm to improve the diversity of PSO)

It explains how can we get auto color by matlab

微环级联四波混频,基于FFT算法，在2013b环境下可运行(cascaded FWM in microring )