www.gusucode.com > signal 工具箱matlab源码程序 > signal/@dfilt/@latticemamin/thisisstable.m
function f = thisisstable(Hd) %THISISSTABLE True if stable. % THISISSTABLE(Hd) returns 1 if discrete-time filter Hd is stable, and 0 % otherwise. % % See also DFILT. % Author(s): R. Losada % Copyright 1988-2003 The MathWorks, Inc. % This should be private f = true; % nonrecursive filters are always stable.