HW 3.7 - Muhammad Aizuddin Zulkifli ECE301 Summer2009 - Rhea

function y = convo(x,h)

m = length(x); n = length(h); X = [x,zeros(1, m-1)]; H = [h,zeros(1,n-1)]; for r1 = 1:1:(m+n-1)

   y(r1) = 0; %creating initial y value
   for  r2 = 1:1:r1
       y(r1) = y(r1) + X(r2)*H(r1-r2+1); % summing up x[1]*h[n] + x[2]*h[n-1] ...
   end

end

function y = convo(x,h) % creating a MATLAB function convo that calls upon two vectors x and h to be convoluted.

X = fft([x zeros(1,length(h)-1)]); H = fft([h zeros(1,length(x)-1)]); y = ifft(X.*H);

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