| fanyushan |
2010-07-19 14:12 |
fminsearch应用出错
我的M文件如下： V13 8d?Mm
function [G5]=fun(x); G ;f/Tch
syms n1 n2 k1 k2 d; 7Sz?S_N/j
[subwave,nsub]=textread('subout.txt','%f %f'); c\% r 38
[filmwave,filmtran]=textread('filmtr.dat','%f %f'); ORu2V# Z[
[p,q]=size(subwave); RZ1
/#;
for j=1:p; h^j?01*Et
wavel(j)=subwave(j,1); A>{p2?`+!
n(j)=n1+n2/((wavel(j))^2); E9V 5$
k(j)=k1*exp(k2/wavel(j)); EC|' l
N(j)=n(j)-i*k(j); F#|: `$ t
phase(j)=2*pi*N(j)*d/wavel(j); MLFKH
ns(j)=nsub(j,1); uUKcB:
B(j)=cos(phase(j))+ns(j)*i*sin(phase(j))/N(j); >J u]2++lx
C(j)=i*N(j)*sin(phase(j))+ns(j)*cos(phase(j)); y^7}oH _
T(j)=4*ns(j)/((B(j)+C(j))*conj(B(j)+C(j))); t< n"-Tqu
ts(j)=1-((1-ns(j))/(1+ns(j)))^2; rpw.]vnn
t1(j)=ts(j)*T(j); p _d:eZ
tf(j)=filmtran(j,1)/100; QMEc QV>
difference(j)=(t1(j)-tf(j))^2; w,Ee>cV]a
end L. ]$6Q0
G=symsum(difference(j),1,401); $< ld3[l i
G1=subs(G,n1,sym('x(1)')); wu"&|dt
G2=subs(G1,n2,sym('x(2)')); tl'n->G>v
G3=subs(G2,k1,sym('x(3)')); WoxwEi1~0
G4=subs(G3,k2,sym('x(4)')); `Y?87f :SP
G5=subs(G4,d,sym('x(5)')); :W@#) 1=
0zY(:;X
(MHAJ]Rx
f-n z{U
在matlab下运行 }-~T<egF
>> options=optimset('tolfun',1e-8,'tolx',1e-8); h=_mNG>R)
>> [xmin,value,flag,output]=fminsearch(@fun,[1.7,4000,0.005,400,500],options); @,XSs
$`Ix:g i
U ?. 9D
结果出错如下： vd6l7" 0/
[%&ZPJT%i
??? Conversion to double from sym is not possible. :6q]F<oK
Error in ==> fminsearch at 175 .CSS}4
fv(:,1) = funfcn(x,varargin{:}); /pp1~r.s?>
;l$ \6T
哪位高手给看看 -X+H2G
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