Mod

最近总是在这下程序，觉得也应该贡献一下，分数阶傅立叶变换的一个matlab程序(Always under the most recent in this process, feel that we should contribute about fractional Fourier transform of a matlab program)

This is reference for those who are new to matlab. Written in Chinese.

随机信号：一段维纳滤波器的小程序，完成维纳滤波。(Random signal: Wiener filter for some small procedures, the completion of Wiener filtering.)

基于local ternary pattern feature 和 distance transform-based similarity metric 相结合的人脸方法识别技术研究(combining the local ternary pattern feature and distance transform-based similarity metric method for robust face recognition.)

A 2D thinning algorithm in matlab code

基于频域基音同步叠加的语音合成算法，在时域基音同步叠加的基础上增加频域调整的部分(Speech synthesis algorithm based on frequency domain pitch synchronous overlap and increase the frequency domain adjusted on the basis of the time-domain pitch synchronous superimposed on part)

说明：  多尺度传递熵Matlab工具箱，用以计算信号的多尺度传递熵(Claculate Multiscale Transfer Entropy)

％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)

说明：  Matlab做的关于三角波，正弦波，方波的FFT算法，可以分析方波信号、三角波信号的频谱以及采样点数、采样频率对频谱分辨率的影响。(Matlab to do on the triangle wave, sine wave, square wave of the FFT algorithm, can be analyzed square-wave signal, triangular wave signal of the spectrum as well as the sampling points, the sampling frequency affect the resolution of the spectrum.)

UN PROGRAMM DE BRUSHLESS DC MOTOR IN M FILE PART 2