Wave simulation

Hello I'm trying to simulate a single source wave in matlab does anyone know how to do that? (code tips)

Thanks

Answer 1

[Sambit Supriya Dash]

This answer may not be useful for the author (it's getting answered after a decade), but could possibly useful for others...

Try to run this code, you will get an idea of it

Suppose, the parameters are as such....

%%%%%%%%% CODE %%%%%%%%%%
% Parameters
L = 10; T = 10; H = 2;
k = 2*pi/L; sigma = 2*pi/T;
dx = L/50;
dt = T/20;
x = 0:dx:L;
t = 0:dt:T;
%%%%%%%% PLOTTING %%%%%%%%%%
figure(1)
for i = 1:length(t)
    tt = t(i);
    z = 0.5*H*sin(k*x-sigma*tt);
    plot(x,z,'-ob','MarkerFaceColor','b')
    yline(0,'-.r','M.S.L','LineWidth',2)
    xlabel('x (m)')
    ylabel('\eta (m)')
    axis([x(1) x(end) -H*2/3 H*2/3])
    drawnow
end

Hope this helped.

Answer 2

[Aniket]

fc=10000;
fm=1000;
fs = 10.00000;
m = 0.5;
A = 1/m;
opt = -A;
t = 0:1/fs:((2/fm)-(1/fs));
Vc = cos(2*pi*fc*t);
Vm = cos(2*pi*fm*t);

y = modulate(Vm, fc, fs, 'amdsb-tc', opt);

Error using modulate (line 86)
The carrier frequency must be less than half the sampling frequency.

subplot(3,2,1);
plot(t, Vm);
title('Original modulating signal');
xlabel('time');
ylabel('Amplitude of original signal');

subplot(3,2,2);
plot(t, Vc);
title('Unmodulating carrier signal');
xlabel('time');
ylabel('Amplitude of carrier signal');

subplot(3,2,3);
plot(t, y);
title('Amplitude modulated signal m=0.5');
xlabel('time');
ylabel('Amplitude of AM signal');

m = 1.0;
opt = -1/m;
y = modulate(Vm, fc, fs, 'amdsb-tc', opt);
subplot(3,2,4);
plot (t,y);
title ('Amplitude modulated signal m=1.0');
xlabel ('time');
ylabel ('Amplitude of AM signal');

m=1.5;
opt = -1/m;
y = modulate (Vm,fc,fs,'amdsb-tc',opt);
subplot(3,2,5);
plot (t,y);
title ('Amplitude modulated signal m=1.5');
xlabel ('time');
ylabel ('Amplitude of AM signal');