3_TCHcodec

這是一個Matlab的麻將圖紋辨識的源碼,內部有附上相關註解(This is a pattern recognition Mahjong Matlab source code, internal comments have attached the relevant)

％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)

pwm 的 模型 PWM matlab的模型(pwm)

This is a MATLAB Simulation file in which Predictive current control(PCC) modulation method for a Full Bridge (2-legs) inverter has been done.The load is a single Phase R_L.

说明：  对原始图像添加椒盐噪声，并用邻域平均和中值滤波法进行滤波，并可以进行对比。(Add salt and pepper noise to the original image, and with neighborhood average and median filtering method for filtering, and can be compared.)

说明：  MATLAB教程，没什么好说的，包含一下东西： MATLAB6.0教程初级；Matlab讲义高级；精通matlab综合辅导与指南；MatLab工程数学应用；MATLAB命令大全；matlab统计工具箱函数汇总；MATLAB应用程序接口用户指南(MATLAB tutorial, there is nothing to say, and includes things like: MATLAB6.0 Tutorial primary Matlab senior notes proficient matlab comprehensive counseling and guidance MatLab Application Engineering Mathematics MATLAB command Guinness matlab statistics toolbox function summary MATLAB Application Program Interface User)

说明：  扩频系统中的小实验，具体介绍在文件kuopin_all中有介绍。(spread spectrum system of small experiments, which are detailed in the document kuopin_all were introduced.)

说明：  一个jake信道算法程序，希望对研究这方面的同学有帮助(A jake channel algorithm procedures in the hope of the research in this area has to help students)

说明：  matlab ART重建算法，该算法可用于CT图像重建或EST图像重建(Matlab ART reconstruction algorithm, which can be used for CT image reconstruction or image reconstruction EST)

stuff for the serial modem on ELSA cards