experiment1_0.m

Simon Haykin的《Communication Systems》(《通信系统》)的配套MATLAB源代码。包括脉冲调制、随机过程、和差错编码等。

% Experiment 1, CSBOOK-Haykin
% Fading channel
% requires functions rayleigh.m  to run



clear all

%signal: Sinusoidal wave

t1=0:0.01:5;     
  
so1=sin(2*pi*t1);

% fading (Raleigh fading)
     
h=rayleigh(t1,1,2);
     
tt=(h(:,2)).*so1';

%plots
    
figure(1)
        
subplot(2,1,1)
        
plot(t1*1e-6,so1)
        
xlabel('time(s)')
        
grid
        
subplot(2,1,2)
        
plot(t1*1e-6,abs(tt).*cos(angle(tt))/sqrt(2))
        
xlabel('time(s)')
        
grid