www.gusucode.com > signal 工具箱matlab源码程序 > signal/@dspdata/@abstractfreqresp/centerdc.m
function centerdc(this,state) %CENTERDC Shift the zero-frequency component to center of spectrum. % Author(s): P. Pacheco % Copyright 1988-2003 The MathWorks, Inc. if nargin < 2, state = true; end if ~xor(this.centerdc, state) return; % State specified = object's state, therefore no-op. end this.centerdc = state; % Call subclasses' method. thiscenterdc(this); % [EOF]