| fanyushan |
2010-07-19 14:12 |
fminsearch应用出错
我的M文件如下： jR ~DToQ
function [G5]=fun(x); X?r48l??
syms n1 n2 k1 k2 d; >c8GW
>\N
[subwave,nsub]=textread('subout.txt','%f %f'); [4Ll0GSp
[filmwave,filmtran]=textread('filmtr.dat','%f %f'); V)M1YZV{
[p,q]=size(subwave); <z+:j!~
for j=1:p; ) P&9A)8
wavel(j)=subwave(j,1); nv0@xnbz
n(j)=n1+n2/((wavel(j))^2); .\Fss(Zn
k(j)=k1*exp(k2/wavel(j)); & Nl2s ey
N(j)=n(j)-i*k(j); yGBQ0o7E
phase(j)=2*pi*N(j)*d/wavel(j); S:Q! "U
ns(j)=nsub(j,1); zR6siAV9
B(j)=cos(phase(j))+ns(j)*i*sin(phase(j))/N(j); l U]un&[N
C(j)=i*N(j)*sin(phase(j))+ns(j)*cos(phase(j)); j F"YTr6
T(j)=4*ns(j)/((B(j)+C(j))*conj(B(j)+C(j))); @~
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ts(j)=1-((1-ns(j))/(1+ns(j)))^2; GV |9H]_,I
t1(j)=ts(j)*T(j); 8ip7^
tf(j)=filmtran(j,1)/100; 9-1#( Y6S
difference(j)=(t1(j)-tf(j))^2; 8kL4~(hY
end 0 BPMmk
G=symsum(difference(j),1,401); `g ''rfk}
G1=subs(G,n1,sym('x(1)')); '!h /B;*(
G2=subs(G1,n2,sym('x(2)')); r{Rg920
G3=subs(G2,k1,sym('x(3)')); jn%kG ~]'Q
G4=subs(G3,k2,sym('x(4)')); q0 mOG^
G5=subs(G4,d,sym('x(5)')); 4'pS*v
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在matlab下运行 H[Q_hY[>V
>> options=optimset('tolfun',1e-8,'tolx',1e-8); 7^TV~E#
>> [xmin,value,flag,output]=fminsearch(@fun,[1.7,4000,0.005,400,500],options); 5`[n8mU
- <_$m6x"A
N^0 uit
结果出错如下： GyI-)Bl DC
0[A9b,MMVO
??? Conversion to double from sym is not possible. @ez Tbc3
Error in ==> fminsearch at 175 y %8op:'
fv(:,1) = funfcn(x,varargin{:}); ,{eU P0 ]
.0HZNWRtb
哪位高手给看看 :c[n\)U[aa
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