CPP.Module.II.Textbook

一段通过nmf做音频分离的程序，可以把男声和女声分离，并且降低噪音(Separated by nmf do some audio program that can separate the male and female, and lower noise)

chord transparition

How to access parallel port in MATLAB

说明：  经典又好用的时间序列模型ARIMA，某些场合比GA还要好用的(ARIMA, a classic and useful time series model, is better than GA in some cases)

说明：  不错的遗传算法实例（别处搜集的，希望对大家有用，在此感谢原创）(Good examples of genetic algorithms (collected elsewhere, we hope to be useful, would like to thank the original))

迭代解码算法Weighted Bit-Flipping Algorithm，可对比数据计算误码率(Iterative decoding algorithm for Weighted Bit-Flipping Algorithm, error rate can be calculated comparing the data)

说明：  可以利用元胞自动机模拟疫情发展情况，并且有详细的论文说明，语义解释(Cellular automata can be used to simulate the development of epidemic situation)

this m file concerning of the subject of interpolation in numerical math of engineering

阵列信号处理中: 仿真圆形阵列天线的用法,对比了传统方法和MUSIC方法的性能(Array Signal Processing: Simulation of circular array antenna usage, compared to the traditional methods and the performance of MUSIC method)

％radon transform clear all ％ N=800 n=1:N fs=200 t=n/fs x1=exp(j*2*pi*(5*t+0.5*5*t.^2)) x2=exp(j*2*pi*(5*t+0.5*15*t.^2)) x=x1+x2 ％N=length(x) ％ ambifunb(x ) ％*****************************************RAT naf=ambifunb(x) htl(abs(naf)) ％ [wh,rho,theta]=htl(abs(naf)) colormap([0,0,0]) ％ xlabel( 极半径 ) ％ ylabel( 角度 ) ％**************************************％找出峰值点的坐标,计算初始频率和调频斜率(正确) ％找出峰值点的坐标 b=max(max(wh)) [u,a]=find(wh>=0.8*b) ( Radon transformclear all N = 800 n = 1: N fs = 200 t = n/fs x1 = exp (j* 2* pi* (5* t+ 0.5* 5* t. ^ 2)) x2 = exp ( j* 2* pi* (5* t+ 0.5* 15* t. ^ 2)) x = x1+ x2 N = length (x) ambifunb (x)***************************************** RATnaf = ambifunb (x) htl (abs (naf)) [wh, rho, theta ] = htl (abs (naf)) colormap ([0,0,0]) xlabel (polar radius) ylabel (angle)************************************** to find the coordinates of the peak point, calculating the initial slope of the frequency and FM (right) find the peak point of the coordinates b = max (max ( wh)) [u, a] = find (wh)