h.s = [0.5 0.5];
h.d = 0;
figure(1);
plot(sig.s);
loopsig = sig;
looph = h;
n = 8;
for i = 1:n
loopsig = myconv(loopsig,looph);
figure(i+1);
plot(loopsig.s);
looph = zeroinsert(looph);
end