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finite difference time domain 2d code

this is simmulation 16-qam modulation in rayleigh channel

逐行读取文本中的数据，自动存储到一个序列数组中(Text data read line by line, is automatically stored into an array sequence)

This is a source code for having echo effect in sound via DSP techniques

This is a matlab code for Amplitude shift keying and Phase shift keying

语音信号的几种概率密度函数，包括高斯模型、Laplace模型和广义高斯模型。(Several probability density function of the speech signal, including the Gaussian model, the Laplace model and the generalized Gaussian model.)

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读取图片，提取图片的颜色矩特征，其中变量I=imread( 1.jpg )，1.jpg即为需要读取的图片。(Read the image, color moments extracted image features, including variable I = imread (' 1. Jpg ' ), 1.jpg shall be required to read the pictures.)

EM 算法-估计binomial distribution的参数(EM algorithm (given the binomial distribution))

sir简单模型，matlab程序编写，供大家参考研究(simple model for sir)