| fanyushan |
2010-07-19 14:12 |
fminsearch应用出错
我的M文件如下： de{Yg N
function [G5]=fun(x); ;XQ lj?:
syms n1 n2 k1 k2 d; N==_'`O1Q0
[subwave,nsub]=textread('subout.txt','%f %f'); qFbUM;
[filmwave,filmtran]=textread('filmtr.dat','%f %f'); WVK-dBU
[p,q]=size(subwave); IF}c*uGj}
for j=1:p; 5THS5'
wavel(j)=subwave(j,1); /C2f;h(1
n(j)=n1+n2/((wavel(j))^2); ATp 6-
k(j)=k1*exp(k2/wavel(j)); bv>lm56
N(j)=n(j)-i*k(j); N4|q2Jvj6
phase(j)=2*pi*N(j)*d/wavel(j); |ZlT>u
ns(j)=nsub(j,1); YKOO(?lv
B(j)=cos(phase(j))+ns(j)*i*sin(phase(j))/N(j); o
0ivja
C(j)=i*N(j)*sin(phase(j))+ns(j)*cos(phase(j)); m>dcb
6B+g
T(j)=4*ns(j)/((B(j)+C(j))*conj(B(j)+C(j))); 05I39/T%
ts(j)=1-((1-ns(j))/(1+ns(j)))^2; e`M]ZG rr
t1(j)=ts(j)*T(j); UZXcK l>u
tf(j)=filmtran(j,1)/100; E?4@C"Na
difference(j)=(t1(j)-tf(j))^2; 13_ ~)V
end 15o
*r
G=symsum(difference(j),1,401); -
zw{<+ ;
G1=subs(G,n1,sym('x(1)')); kDl4t]j
G2=subs(G1,n2,sym('x(2)')); Mq lo:7
^F
G3=subs(G2,k1,sym('x(3)')); 5po' (r|U
G4=subs(G3,k2,sym('x(4)')); :_,]?n
G5=subs(G4,d,sym('x(5)')); aX'g9 E
zQ %z "tQ
;=\5$J9
VSpt&19
在matlab下运行 7r[ % | :
>> options=optimset('tolfun',1e-8,'tolx',1e-8); PeUd
>> [xmin,value,flag,output]=fminsearch(@fun,[1.7,4000,0.005,400,500],options); Yj7= T%5
JBEgiQ/
AKC foJ
结果出错如下： qTh='~m4[
\M"^Oe{Dy?
??? Conversion to double from sym is not possible. +[8Kl=]L
Error in ==> fminsearch at 175 K[>@'P}y
fv(:,1) = funfcn(x,varargin{:}); '}pgUh_
0"qim0%|DF
哪位高手给看看 0Q-
Mxcj
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