| fanyushan |
2010-07-19 14:12 |
fminsearch应用出错
我的M文件如下： x-CY G?-x
function [G5]=fun(x); mkrvWZ jZX
syms n1 n2 k1 k2 d; HSp*lHU
[subwave,nsub]=textread('subout.txt','%f %f'); ]n\WCU ]0
[filmwave,filmtran]=textread('filmtr.dat','%f %f'); Pw
hs`YGMF
[p,q]=size(subwave); %!p14c*J H
for j=1:p; j\!zz
wavel(j)=subwave(j,1); 7:{4'Wr@6|
n(j)=n1+n2/((wavel(j))^2); T?^AllUZQR
k(j)=k1*exp(k2/wavel(j));
KW^s~j
N(j)=n(j)-i*k(j); q;tsA" l
phase(j)=2*pi*N(j)*d/wavel(j); /2Y
Nu*v
ns(j)=nsub(j,1); >sPu*8D40a
B(j)=cos(phase(j))+ns(j)*i*sin(phase(j))/N(j); "p2 $R*ie
C(j)=i*N(j)*sin(phase(j))+ns(j)*cos(phase(j)); *G>V`||RW
T(j)=4*ns(j)/((B(j)+C(j))*conj(B(j)+C(j))); p0` Wci
ts(j)=1-((1-ns(j))/(1+ns(j)))^2; 52wq<[#tK
t1(j)=ts(j)*T(j); ?VS {,"X
tf(j)=filmtran(j,1)/100; JR'Q Th:z
difference(j)=(t1(j)-tf(j))^2; _6^ vxlF
end n*@^c$&P
G=symsum(difference(j),1,401); 4U C/pGZY
G1=subs(G,n1,sym('x(1)')); =n9adq
G2=subs(G1,n2,sym('x(2)')); HBo^8wN
G3=subs(G2,k1,sym('x(3)')); E' JVf%)
G4=subs(G3,k2,sym('x(4)')); 4# ;rv$
{
G5=subs(G4,d,sym('x(5)')); IP&En8W+
<s]K~ Vo
N;Hrc6nin^
4 h :Oo
在matlab下运行 P}DrUND
>> options=optimset('tolfun',1e-8,'tolx',1e-8); Ml +.\'r
>> [xmin,value,flag,output]=fminsearch(@fun,[1.7,4000,0.005,400,500],options); CH`4FR.-
Wy)|-Q7
r7JILk
结果出错如下： OtY.s\m y
92+({ fg W
??? Conversion to double from sym is not possible. g^}X 3NUn
Error in ==> fminsearch at 175 Xb#x^?|
fv(:,1) = funfcn(x,varargin{:}); V1xpJ
- NiFO
哪位高手给看看 N!9DZEcm
|
|