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1.MATLAB里bd_asymp函数源代码是源码什么?
MATLAB里bd_asymp函数源代码是什么?
具体函数如下所示,
function [wpos,源码源码系统分润ypos]=bd_asymp(G,w)
G1=zpk(G); Gtf=tf(G);
if nargin==1,
w=freqint2(Gtf.num{ 1},Gtf.den{ 1},);
end
zer=G1.z{ 1}; pol=G1.p{ 1}; gain=G1.k;
wpos=[]; pos1=[];
for i=1:length(zer);
if isreal(zer(i))
wpos=[wpos, abs(zer(i))];
pos1=[pos1,];
else
if imag(zer(i))>0
wpos=[wpos, abs(zer(i))];
pos1=[pos1,];
end, end, end
for i=1:length(pol);
if isreal(pol(i))
wpos=[wpos, abs(pol(i))];
pos1=[pos1,-];
else
if imag(pol(i))>0
wpos=[wpos, abs(pol(i))];
pos1=[pos1,-];
end, end, end
wpos=[wpos w(1) w(length(w))];
pos1=[pos1,0,0];
[wpos,ii]=sort(wpos); pos1=pos1(ii);
ii=find(abs(wpos)<eps); kslp=0;
w_start=*eps;
if length(ii)>0,
kslp=sum(pos1(ii));
ii=(ii(length(ii))+1):length(wpos);
wpos=wpos(ii); pos1=pos1(ii);
end
while 1
[ypos1,pp]=bode(G,w_start);
if isinf(ypos1), w_start=w_start*;
else, break; end
end
wpos=[w_start wpos];
ypos(1)=*log(ypos1);
pos1=[kslp pos1];
for i=2:length(wpos)
kslp=sum(pos1(1:i-1));
ypos(i)=ypos(i-1)+...
kslp*log(wpos(i)/wpos(i-1));
end
ii=find(wpos>=w(1)&wpos<=w(length(w)));
wpos=wpos(ii); ypos=ypos(ii);