How to make convolution between two signals?

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Mennah Bennis
Mennah Bennis on 24 Dec 2012
Edited: Matt J on 12 Apr 2017
If I have x[n] = δ[n] + 2 δ[n-1]- 3 δ[n-4] and h[n] = 3 δ[n]+2 δ[n-1]. Plot x[n], h[n], and then plot the convolution x[n]*h[n].

Answers (3)

Matt J
Matt J on 24 Dec 2012

Muruganandham Subramanian
Muruganandham Subramanian on 24 Dec 2012

Wayne King
Wayne King on 24 Dec 2012
x = [1 2 0 0 -3];
h = [3 2];
y = conv(x,h);
subplot(311)
stem(0:4,x,'markerfacecolor',[0 0 1])
set(gca,'xlim',[0 5]);
subplot(312)
stem(0:1,h,'markerfacecolor',[0 0 1])
set(gca,'xlim',[0 5]);
subplot(313)
stem(0:5,y,'markerfacecolor',[0 0 1])
set(gca,'xlim',[0 5]);
  2 Comments
Matt J
Matt J on 12 Apr 2017
Edited: Matt J on 12 Apr 2017
That would be a symbolic operation. You could use the command int in the Symbolic Math Toolbox to implement the continuous convolution integrals symbolically.

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