snr

A digital modulation using simulink. very useful for beginer

matlab入门经典教程和函数速查手册，都是matlab入门必备的书籍！(Matlab introduction to the classic tutorial and function manual, is Matlab the necessary entry books!)

Thresholding of i/p image

pdf file and matlab code for space time block coding for wireless communications

AFD与AFDPF盲区对应的MATLAB程序.(the NDZ of AFD and AFDPF detection method corresponding MATLAB program.)

重叠和不重叠分段计算的功率谱比较,算法通用性强。(Overlapping and non-overlapping sub-calculated power spectrum comparison)

介绍了三次样条插值的Mtlab程序，程序简单易懂，有助于对三次样条插值的了解。(Introduce a cubic spline interpolation of Mtlab procedures, the procedures simple and easy to understand, contribute to the cubic spline interpolation understanding.)

cmac+code matlab cmac

％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：  通信系统中不同衰落信道的比较，分析性能的差异(compare the difference of different fading communication channel.)