www.gusucode.com > signal 工具箱matlab源码程序 > signal/@dfilt/@singleton/tolatticemamin.m
function Hd2 = tolatticemamin(Hd); %TOLATTICEMAMIN Convert to lattice moving-average. % Copyright 1988-2010 The MathWorks, Inc. if ~isfir(Hd) error(message('signal:dfilt:singleton:tolatticemamin:DFILTErr')); end [b,a] = tf(Hd); b = b/a(1); if b(1)~=1, b = b/b(1); warning(message('signal:dfilt:singleton:tolatticemamin:GainIntroduced', num2str( 20*log10( 1/b( 1 ) ) ))); end k = tf2latc(b); Hd2 = dfilt.latticemamin(k);