www.gusucode.com > signal 工具箱matlab源码程序 > signal/@dfilt/@filterquantizer/firinterpfootconnect.m
function [NL, PrevIPorts, PrevOPorts, NextIPorts, NextOPorts, mainparams]=firinterpfootconnect(q,NL,H,mainparams,interp_order) % Copyright 2005 The MathWorks, Inc. % Specify qparams %sum and gain for m=1:interp_order gainidx = m; set(NL.nodes(gainidx),'qparam','double'); sumidx = interp_order+m; set(NL.nodes(sumidx),'qparam','double'); end % connections % connect gains to sum, note the last two gains connects to the same sum % block (last one) delayidx = 2*interp_order+1; for m=1:interp_order gainidx = m; sumidx = interp_order + m; NL.connect(gainidx,1,sumidx,1); NL.connect(delayidx,1,gainidx,1); end % the port to previous and next stage PrevOPorts=[]; NextIPorts=[]; PrevIPorts=[filtgraph.nodeport(delayidx,1)]; NextOPorts=[]; for m=1:interp_order sumidx = interp_order+m; PrevIPorts = [PrevIPorts, filtgraph.nodeport(sumidx,2)]; NextOPorts = [NextOPorts, filtgraph.nodeport(sumidx,1)]; end