| fanyushan |
2010-07-19 14:12 |
fminsearch应用出错
我的M文件如下： * ,hhX
psa
function [G5]=fun(x); AC,RS 7
syms n1 n2 k1 k2 d; }%|ewy9|CW
[subwave,nsub]=textread('subout.txt','%f %f'); ^hIdmTf6
[filmwave,filmtran]=textread('filmtr.dat','%f %f'); W XQ @kQD
[p,q]=size(subwave); ~YYnn7)
for j=1:p; ,Bk5( e
wavel(j)=subwave(j,1); / F0q8j0
n(j)=n1+n2/((wavel(j))^2); idI w7hi4
k(j)=k1*exp(k2/wavel(j)); +9_Y0<C
N(j)=n(j)-i*k(j); -#v~;Ci
phase(j)=2*pi*N(j)*d/wavel(j); B~]Kqp7yU
ns(j)=nsub(j,1); ]fyfL|(;
B(j)=cos(phase(j))+ns(j)*i*sin(phase(j))/N(j); -k'<6op
C(j)=i*N(j)*sin(phase(j))+ns(j)*cos(phase(j)); $dL..QH^K
T(j)=4*ns(j)/((B(j)+C(j))*conj(B(j)+C(j))); '}. Y f_
ts(j)=1-((1-ns(j))/(1+ns(j)))^2; s0SzO,Vi
t1(j)=ts(j)*T(j); ' )m!48
tf(j)=filmtran(j,1)/100; <Ky-3:pxeM
difference(j)=(t1(j)-tf(j))^2; lTx_E#^s
end &\h7E
G=symsum(difference(j),1,401); wI.aV>
G1=subs(G,n1,sym('x(1)')); i^s Vy
G2=subs(G1,n2,sym('x(2)')); Ca2r<|uA
G3=subs(G2,k1,sym('x(3)')); o@:"3s
G4=subs(G3,k2,sym('x(4)')); ":!$Jnj ,
G5=subs(G4,d,sym('x(5)')); F? # 3
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*;<fh,wO k
/3b *dsYsl
在matlab下运行 <kn 2
>> options=optimset('tolfun',1e-8,'tolx',1e-8); pjeNBSu6
>> [xmin,value,flag,output]=fminsearch(@fun,[1.7,4000,0.005,400,500],options); E7 Cobpm
>*-%:ub
1 .3#PdMR,
结果出错如下： -Jd|H*wWo
1Bh"'9-!JT
??? Conversion to double from sym is not possible. KOcB#UHJ
Error in ==> fminsearch at 175 z*.AuEK?
fv(:,1) = funfcn(x,varargin{:}); xGd60"w2
LmrdVSs_
哪位高手给看看 {:X'9NEE
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