www.gusucode.com > signal 工具箱matlab源码程序 > signal/@dfilt/islinphase.m
%ISLINPHASE True for linear phase discrete-time filter. % ISLINPHASE(Hd) returns 1 if filter Hd is linear phase, and 0 otherwise. % % ISLINPHASE(Hd,TOL) uses tolerance TOL to determine when two numbers are % close enough to be considered equal. % % See also DFILT. % Authors: J. Schickler % Copyright 1988-2002 The MathWorks, Inc. % Help for the filter's ISLINPHASE pcoded method. % [EOF]