Multiplication of two different continuous signal in Matlab
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Aishwarya Bannai
le 12 Mai 2021
Réponse apportée : ghomer
le 17 Juil 2023
Hello,
I am trying to multiply a continous periodic sine wave to that of a rectangular pulse, But I see the error that the matrix dimensions must agree, Is it possible to multiply two different signals in MATLAB? can you please help me with one example code? or may be the commands that could be helpful.
x = 0:0.05:6;
y = sin(x)
subplot(3,1,1)
plot(x,y)
t1 = 0:0.05:1;
t2 = 1:0.05:2;
t3 = 2:0.05:3;
t4 = 3:0.05:4;
t5 = 4:0.05:5;
t6 = 5:0.05:6;
t=[t1 t2 t3 t4 t5 t6];
x1 = ones(size(t1));
x2 = zeros(size(t2));
x3 = ones(size(t3));
x4 = ones(size(t4));
x5 = zeros(size(t5));
x6 = ones(size(t6));
xs = [x1 x2 x3 x4 x5 x6]
subplot(3,1,2)
plot(t,xs);
ylim([-0.5 6])
%
% mul = xs.*y;
% subplot(3,1,3)
% plot(t,mul)
% ylim([-0.5 6])
The present code is this
Thank you
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Réponse acceptée
Stephan
le 12 Mai 2021
Modifié(e) : Stephan
le 12 Mai 2021
You made a mistake in defining t2...t6:
x = 0:0.05:6;
y = sin(x);
subplot(3,1,1)
plot(x,y)
t1 = 0:0.05:1;
t2 = 1.05:0.05:2;
t3 = 2.05:0.05:3;
t4 = 3.05:0.05:4;
t5 = 4.05:0.05:5;
t6 = 5.05:0.05:6;
t=[t1 t2 t3 t4 t5 t6];
x1 = ones(size(t1));
x2 = zeros(size(t2));
x3 = ones(size(t3));
x4 = ones(size(t4));
x5 = zeros(size(t5));
x6 = ones(size(t6));
xs = [x1 x2 x3 x4 x5 x6];
subplot(3,1,2)
plot(t,xs);
ylim([-0.5 6])
mul = xs.*y;
subplot(3,1,3)
plot(t,mul)
ylim([-0.5 6])
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