how can i create an amplitude sweep?

Hello,

im trying to create a signal that has a constant frequency but a changing amplitude.

Please help if you know.

Regards

Ali

Answer 1

[Star Strider]

Try these —

t = linspace(0, 10, 500);
s = sin(2*pi*t*10);

figure
subplot(3,1,1)
plot(t, s)
grid
ylim([-10 10])
title('Original Signal')
subplot(3,1,2)
plot(t, s .* t)
grid
ylim([-10 10])
title('Original Signal With Linearly-Increasing Amplitude')
subplot(3,1,3)
plot(t, s .* 5.*cos(2*pi*0.5*t))
grid
ylim([-10 10])
title('Original Signal With Periodically-Changing Amplitude')

.

[Ali Albaidhani]

thank you so much

[Star Strider]

As always, my pleasure!

.