little problem in plotting a signal. Both x, y has the same lenght but is not plotting correctly
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Hello!! I have this code and I am not getting what I should, that actually is a kind of sin that decrease whith the time. I have check that both arrays have the same lenght, but the problem is that the variable a that I used for the loop is fixed to 100. All this values I checked at the workspace. Here it goes the code
Tc=1*10e-3;
f=linspace(0.1,2e6);
R=zeros(1,100);%preallocate
for a=1:1:100
R(a)=i*Tc*sinc(f(a).*Tc/2).*sin(pi*f(a).*Tc/2);
end
plot(f,R)
Thanks in advance Nicolas
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Antworten (3)
Honglei Chen
am 14 Mär. 2012
I don't think a is the issue here. In your R(a), do you mean pi instead of i for the first term?
BTW you should be able to write this in vectorized form, just do
R = pi*Tc*sinc(f.*Tc/2).*sin(pi*f.*Tc/2)
Honglei Chen
am 14 Mär. 2012
Yes you don't need to write the loop, if you mean for imaginary part, then it is
R = 1i*Tc*sinc(f.*Tc/2).*sin(pi*f.*Tc/2)
plot(f,imag(R))
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