www.gusucode.com > signal 工具箱matlab源码程序 > signal/+fdesign/@isinchp/multiratedefaults.m

    function multiratedefaults(this, maxfactor)
%MULTIRATEDEFAULTS Setup the isinchp object for multirate.

%   Copyright 2011 The MathWorks, Inc.

if maxfactor == 1
  fs = 0.45;
  fp = 0.55;
else
  fs = 1 -  1/maxfactor;
  fp = 1 - .8/maxfactor;
end

% Scale by the sampling frequency.
if ~this.NormalizedFrequency
    fp = fp*this.Fs/2;
    fs = fs*this.Fs/2;
end

this.Fstop = fs;
this.Fpass = fp;

% [EOF]