www.gusucode.com > signal 工具箱matlab源码程序 > signal/@dfilt/@scalar/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): T. Bryan % Copyright 1988-2002 The MathWorks, Inc. % This should be private % Scalar filters are always stable. f = true;