www.gusucode.com > signal 工具箱matlab源码程序 > signal/@dfilt/@calattice/thisisstable.m
function f = thisisstable(Hd) %THISISSTABLE True if filter is stable. % THISISSTABLE(Hd) returns 1 if discrete-time filter Hd is stable, and 0 % otherwise. % Author(s): R. Losada, T. Bryan % Copyright 1988-2002 The MathWorks, Inc. % This should be private f = thisisstable(Hd.privAllpass1) & thisisstable(Hd.privAllpass2);