www.gusucode.com > signal 工具箱matlab源码程序 > signal/@dfilt/@dffir/thissetstates.m
function S = thissetstates(Hd,S) %THISSETSTATES Overloaded set for the States property. % This should be a private method % Author: R. Losada % Copyright 1988-2006 The MathWorks, Inc. if isempty(S), % Prepended the state vector with one extra zero per channel S = nullstate1(Hd.filterquantizer); else % Check data type, quantize if needed S = validatestates(Hd.filterquantizer, S); % Prepended the state vector with one extra zero per channel S = prependzero(Hd.filterquantizer, S); end tapIndex = Hd.TapIndex; if isempty(tapIndex), tapIndex = 0; end % Convert linear -> circular states [nr ncol] = size(S); Scir = S; Scir(tapIndex+1:end,:) = S(1:nr-tapIndex,:); Scir(1:tapIndex,:) = S(nr-tapIndex+1:end,:); Hd.HiddenStates = Scir; S = [];