ovadd.m

overlap addition for input sequence long

clc;
clear all;
close all;
x=input('enter x:');
h=input('enter h:');
xl=length(x);
hl=length(h);
k=mod(xl,hl);
if k~=0
x=[x zeros(1,2*hl-1-k)];
end
h=[h zeros(1,hl-1)];
z=zeros(1,xl+hl-1);
for i=1:hl:length(x)-hl+1
    p(1:hl)=x(i:i+hl-1);
    p(hl+1:2*hl-1)=0;
    [q]=circular(p,h);
    q=q';
    z(i:i+hl-2)=z(i:i+hl-2)+q(1:hl-1);
    z(i+hl-1:i+2*hl-2)=q(hl:2*hl-1);
end
y(1:xl+hl-1)=z(1:xl+hl-1);
display(y)