autospectrum

压缩包里只有程序没有仿真图">

通过Matlab编程，经过提取特征参数与模板对比，可以识别0-9十个数字。(By Matlab programming, after extracting characteristic parameters compared with the template, you can identify 0-9 ten numbers.)

说明：   empirical formula with kaiser clc clear all fs=1000 fc=250 df=50 r=0.001 f=fc/fs dw=2*pi*(df/fs) a=-20*log(r) n=floor(((a-8)/(2.285*dw))+1) if a>50 b=0.1102*(a-8.7) elseif a>=21 && a<=50 b=0.5842*((a-21)^0.4)+0.07886*(a-21) elseif a<21 b=0.0 end w=kaiser(n,b) for i=1:n if i~=(n-1)/2 hd(i)= (2*f*sin((i-((n-1)/2))*2*pi*f))/((i-((n-1)/2))*2*pi*f) elseif i==(n-1)/2 hd(i)=2*f end end for j=1:n h(j)=w(j)*hd(j) end subplot(3,1,1), plot(w) subplot(3,1,2), plot(h) subplot(3,1,3), plot(h,n)

Can find the phase of the voltage of a power system

基于rgb颜色模型的隔行隔列扫描可用于判断背景和前景的区别大小(Rgb color model based on interlaced scanning can be separated out for the difference between background and foreground to judge the size of)

Simple merge of two Simulink models, hilighting differences.

PWM PI controller simulink matlab

说明：  希尔伯特变换的三种方法，经本人验证，在MATLAB中可以运行(Hilbert transformation of the three methods, by my verification, in MATLAB can run)

I am simply extracting three types of features from the wavelet transform coefficients, these include: energy, variance and waveform length. You can modify and extract any types of features as you need. ** You need the wavelet toolbox to run this code.

SPEA2 MATLAB程序 多目标进化算法(The SPEA2 MATLAB program multi-objective evolutionary algorithm)