work

fit_rayleigh_pdf - Non Linear Least Squares fit of the Rayleigh distribution. given the samples of the histogram of the samples, finds the distribution parameter that fits the histogram samples.fits data to the probability of the form: p(r)=r*exp(-r^2/(2*s))/s with parameter: s format:result = fit_rayleigh_pdf( x,y,W,hAx ) input: y - vector, samples of the histogram to be fitted x - vector, position of the samples of the histogram (i.e. y = f(x,a)) W - matrix or scalar, a square weighting matrix of the size NxN where N = length(y), or 0 to indicate no weighting is needed. hAx - handle of an axis, on which the fitted distribution is plotted output: result - structure with the fields s - fitted parameter VAR - variance of the estimation type- weighted LS or not weighted LS iter- number of iteration for the solution

用MATLAB编写的XFEM程序，可以计算两种材料的结构有限元分析，可以计算应力(XFEM using MATLAB program that can calculate the two materials finite element analysis, we can calculate the stress)

把整个频率范围中的某段重点频区局部放大，获得比整个频率范围高的频率分辨率，从而观察频谱中的细微部分(The entire frequency range of the frequency of certain key areas enlarged to obtain the entire frequency range than the high frequency resolution, and thus observe the subtle part of the spectrum)

说明：  计算短路电流（1相，2相，3相）。需要自己画出节点图并输入(Calculation of short circuit current (1 phase, 2 phase, 3 phase). Need to draw their own map and enter the node)

Fantastically a good book on C++

Interactive music visualization

线形调频信号特性仿真，包括其频率特性，脉冲压缩特性等(Simulation of linear FM signal characteristics, including their frequency, pulse compression characteristics)

不同结构元素的腐蚀效果。MATLAB环境代码，配有实验用图。《精通Matlab数字图像处理与识别》(Corrosive effects of different structural elements. MATLAB environment code with experimental Figure)

二维的TM波打到一个方形的金属柱上，边界条件为PML(TM wave hit a two-dimensional square metal column, PML boundary conditions)

去噪后的性能指标计算，其中包含信噪比、均方误差以及平滑度指标。(After denoising performance index calculation, including signal-to-noise ratio, the mean square error (mse) and smoothness index. )