f_tipsfir.asv

digital signal processing常用工具箱

% GUI module => g_fir
%
% User tips:
% 
% 1. All changes to edit box parameters are activated with
%    the Enter key.
%
%    F_0     = lower cutoff frequency
%    F_1     = upper cutoff frequency
%    B       = width of transition band
%    fs      = sampling frequency
%    delta_p = passband ripple
%    delta_s = stopband attenuation
%
% 2. Use the slider bar to adjust the FIR filter order m.
%
% 3. The User-defined filter type requires the name of an
%    M-file function that returns the desired amplitude 
%    response, A = ufun(f,fs).  When f is a vector of evaluation
%    frequencies, A should be a vector of the same size. For
%    example:
%
%    function A = ufun(f,fs)
%         for i A = zeros(size(f));
%