Example 1: FIR Filter Design

% Filter parameters:
L = 257;    % filter length 
fc = 600;   % cutoff frequency 

% Design the filter using the window method:
hsupp = (-(L-1)/2:(L-1)/2);
hideal = (2*fc/Fs)*sinc(2*fc*hsupp/Fs);
h = hamming(L)' .* hideal; % h is our filter