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

    function [NL, PrevIPorts, PrevOPorts, NextIPorts, NextOPorts, mainparams]=firsrcfootconnect(q,NL,H,mainparams,interp_order)
%FIRSRCFOOTCONNECT 

%   Copyright 2007 The MathWorks, Inc.


for m=1:interp_order
    gainidx = m;
    set(NL.nodes(gainidx),'qparam','single');
    sumidx = interp_order+gainidx;
    set(NL.nodes(sumidx),'qparam','single');
end

delayidx = (2*interp_order+2);
zohidx   = (2*interp_order+1);

% connect delay with zoh
NL.connect(delayidx,1,zohidx,1);

% connect gains to sums, zoh to gains
for m=1:interp_order
    gainidx = m;
    sumidx = interp_order + gainidx;
    NL.connect(gainidx,1,sumidx,1);
    NL.connect(zohidx,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


% [EOF]