How to plot sinc signal?

Write a Matlab code to generate the following signal:

𝑚 (𝑡)=2𝑠𝑖𝑛𝑐 (2𝑡𝑇)+𝑠𝑖𝑛𝑐 (2𝑡𝑇+1)+ 𝑠𝑖𝑛𝑐 (2𝑡𝑇−1)

Answer 1

[Ameer Hamza]

easy peasy:

t = -2:0.01:2;
T = 2;
y = 2*sinc(2*T*t) + sinc(2*T*t+1) + sinc(2*T*t-1);

plot(t, y)

sinc() function is defined in Signal Processing toolbox.

If you don't have the toolbox, then you can define it like this

function y = sinc(x)
    y = sin(pi*x)./(pi*x);
    y(x==0) = 1;
end

[Mahmoud Tahoun]

Thanks alot

[Ameer Hamza]

I am glad to be of help!