Ploting Rayleigh faded signal copies

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Ali Sabra
Ali Sabra 2019-10-23
回答： Daniel M 2019-10-23
Hello everyone, I am looking for a way to sum a Rayleigh faded sine wave with its delayed Rayleigh faded version. I am trying to plot them in figure and to plot the original signal in another one to see the difference. I want to plot both of them versus time not only the original signal as in the figure.
c1 = rayleighchan(1/1600,100);
%c1.PathDelays = [0 1e-6];
%%Time specifications:
Fs = 1600; % samples per second
dt = 1/Fs; % seconds per sample
StopTime = 62.5; % seconds
t = (0:dt:StopTime-dt)'; % seconds
%Sine wave
Fc = 1; % hertz
sin = cos(2*pi*Fc*t);
% Plot the signal versus time:
figure (6);
%subplot (2,2,1)
%plot(t,sin);
%xlabel('time (in seconds)');
% title('Signal versus Time');
% zoom xon;
%subplot(2,2,2)
sin1 = filter (c1,sin);
% plot (t,10*log10 (abs(sin1)));
%subplot(2,2,3)
plot (t,sin1);
xlabel('time (in seconds)');
title('Signal versus Time');
% now shift the signal in time by zeropadding at the beginning:
tau = 802*dt;
y = [ tau ; sin1 ];
% Also, let's zeropad x at the end so that it has the same length as y:
sin1 = [ sin1 ; tau ];
% Create a simple time domain:
n = (1:size(z,1))';
z = sin1 + y;
% plot both signals:
figure(2);
plot(n,z,'r');
legend('z');

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采纳的回答

Daniel M
Daniel M 2019-10-23
figure
plot(t,real(sin1))
hold on
plot(t,imag(sin1))
xlabel('Time')
Or, using subplot
figure
subplot(2,1,1)
plot(t,real(sin1))
title('title for subplot1')
xlabel('xlabel for subplot 1')
subplot(2,1,2)
plot(t,imag(sin1))
title('title for subplot 2') % etc...

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