www.gusucode.com > signal 工具箱matlab源码程序 > signal/@filtdes/@lpminellip/design.m
function varargout = design(h,d) %DESIGN Method to design the filter given the specs. % Author(s): R. Losada, J. Schickler % Copyright 1988-2005 The MathWorks, Inc. [Fpass, Fstop, Apass, Astop] = getdesignspecs(h,d); if nargout == 1, hfdesign = fdesign.lowpass(Fpass, Fstop, Apass, Astop); Hd = ellip(hfdesign, 'MatchExactly', d.MatchExactly); varargout = {Hd}; else N = ellipord(Fpass,Fstop,Apass,Astop); [z,p,k] = ellip(N,Apass,Astop,Fpass); varargout = {z,p,k}; end % [EOF]