www.gusucode.com > signal 工具箱matlab源码程序 > signal/@dfilt/@multistage/thisisfir.m
function f = thisisfir(Hd) %THISISFIR True for FIR filter. % THISISFIR(Hd) returns 1 if filter Hd is FIR, and 0 otherwise. % % See also DFILT. % Author: Thomas A. Bryan, J. Schickler % Copyright 1988-2004 The MathWorks, Inc. % This should be private f = all(isfir(Hd.Stage));