Task 4: Use MATLAB to compute response of EWMA to input x[n] = u[n] u[n 4] = 1 at @n=0,1,2,3 Form the input x X=[1 1 1 1] % Use MATLAB convolution to compute the output y=conv(x,h,'full') % Plot the input and output signals Task 4: Use MATLAB to compute response of EWMA to input x[n] = u[n] u[n 4] = 1 at @n=0,1,2,3 Form the input x X=[1 1 1 1] % Use MATLAB convolution to compute the output y=conv(x,h,'full') % Plot the input and output signals