www.gusucode.com > signal 工具箱matlab源码程序 > signal/@dfilt/@dtfiir/setrefden.m
function den = setrefden(Hd, den) %SETREFNUM Overloaded set on the refden property. % Author: P. Costa % Copyright 1988-2004 The MathWorks, Inc. validaterefcoeffs(Hd.filterquantizer, 'Denominator', den);