| fanyushan |
2010-07-19 14:12 |
fminsearch应用出错
我的M文件如下： T1'\!6_5
function [G5]=fun(x); M`E}1WNQ?]
syms n1 n2 k1 k2 d; EK&0Cn3z
[subwave,nsub]=textread('subout.txt','%f %f'); *,~L_)vWO
[filmwave,filmtran]=textread('filmtr.dat','%f %f'); WpRM|"CF
[p,q]=size(subwave); ?]o(cz
for j=1:p; v8n^~=SH
wavel(j)=subwave(j,1); }$
Kd-cj+
n(j)=n1+n2/((wavel(j))^2); U *,\UF
k(j)=k1*exp(k2/wavel(j)); '8(UiB5d
N(j)=n(j)-i*k(j); X #zp,7j?
phase(j)=2*pi*N(j)*d/wavel(j); S)/548=`
ns(j)=nsub(j,1); W Bb*2
B(j)=cos(phase(j))+ns(j)*i*sin(phase(j))/N(j); H JP~
lg
C(j)=i*N(j)*sin(phase(j))+ns(j)*cos(phase(j)); S#< y_w%
T(j)=4*ns(j)/((B(j)+C(j))*conj(B(j)+C(j))); >?6HUUQ
ts(j)=1-((1-ns(j))/(1+ns(j)))^2; F!p; ]B
t1(j)=ts(j)*T(j); H!>>|6OPF
tf(j)=filmtran(j,1)/100; wuW{ 2+)B
difference(j)=(t1(j)-tf(j))^2; ? % A 2
end {'z $5<|
G=symsum(difference(j),1,401); *z.r OY=
8
G1=subs(G,n1,sym('x(1)')); {s@ 0<!
G2=subs(G1,n2,sym('x(2)')); Kr;=4xg=
G3=subs(G2,k1,sym('x(3)')); 9hh~u
-8 L
G4=subs(G3,k2,sym('x(4)')); j(k}NWPH
G5=subs(G4,d,sym('x(5)')); z;ku*IV
,eWLig
X{<taD2~
hljKBx ~
在matlab下运行 !~vx|_$#
>> options=optimset('tolfun',1e-8,'tolx',1e-8); %wI)uJ2
>> [xmin,value,flag,output]=fminsearch(@fun,[1.7,4000,0.005,400,500],options); o\; hF3
dZI["FeO&d
wNn=JzP
结果出错如下： E+LQyvF[
R[)bGl6#
??? Conversion to double from sym is not possible. 0s\ -iub=d
Error in ==> fminsearch at 175 .!Kqcz% A
fv(:,1) = funfcn(x,varargin{:}); 5&O%0`t
KY%{'"'u
哪位高手给看看 adAdX;@e`
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