classify_the_digits

This is a code for selective repeat ARQ which is used for transmission and reception of data. This is checked and tested code in MATLAB.

说明：  一个关于数值分析的matlab演示，十分有用(A presentation on the numerical analysis matlab, very useful)

to detect edge using sobel filter

菲涅尔衍射的卷积形式以及傅里叶变换形式，可以用matlab模拟出衍射斑(Fresnel diffraction convolution of the form as well as the form of the Fourier transform, can simulate the diffraction spots with matlab)

暂态程序，主要应用于电力系统分析过程当中。(transition)

这是现代数字信号处理课程中涉及到的实验，预测太阳黑子周期的，包含周期图法和burg法。(This is a modern digital signal processing courses related to the experiment, predicted sunspot cycle, including the periodogram method and burg method.)

说明：  高斯滤波器 matlab toolbox For GMMs and Gaussian kernels(Gaussian filter matlab toolboxFor GMMs and Gaussian kernels)

Voice quality assessment

改进粒子群算法以及例子,可单步运行，算法参数可调(improve PSO and example)

极大似然参数估计，对于已知输入输出数据的情况下，对系统的参数进行估计。(Maximum Likelihood Parameter estimation, for the case of known input and output data to estimate the parameters of the system.)