www.gusucode.com > signal 工具箱matlab源码程序 > signal/@dfilt/@df1sos/getstructure.m

    function struct = getstructure(Hd)
%GETSTRUCTURE Get the structure type of second order sections.

%   Author: V. Pellissier
%   Copyright 1988-2002 The MathWorks, Inc.

struct = 'df1';