Application of Sinc function in data or signal processing | Frequency-domain sinc | MATLAB

Code:

clc
clear all
close all
t=0:0.11:20;
x=sin(t);
plot(x,'g','linewidth',2);
hold on;
n=randn(1,length(t));
x=x+n;
plot(x,'b');
hold on;
g=0:0.1:2;
y=0.1*ones(1,length(g));
z=conv(x,y);
plot(z,'r','linewidth',2);
legend('Original Siganl', 'Noise Corruped signal', 'Filtered Signal');

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