| fanyushan |
2010-07-19 14:12 |
fminsearch应用出错
我的M文件如下： g [ dI%
function [G5]=fun(x); WD${f#]N
syms n1 n2 k1 k2 d; +`D,7"{Eu
[subwave,nsub]=textread('subout.txt','%f %f'); ` 0}z
;&:
[filmwave,filmtran]=textread('filmtr.dat','%f %f'); u hJ nDo
[p,q]=size(subwave); YKtF)N;m]
for j=1:p; K[/sVaPZ
wavel(j)=subwave(j,1); $T%~t@Cv1
n(j)=n1+n2/((wavel(j))^2); *W&}}iL
k(j)=k1*exp(k2/wavel(j)); R3,O;9i
N(j)=n(j)-i*k(j); .W/#$s|X\
phase(j)=2*pi*N(j)*d/wavel(j); jXu)%<
ns(j)=nsub(j,1); Fu;\t 0
B(j)=cos(phase(j))+ns(j)*i*sin(phase(j))/N(j); e <]^7pz
C(j)=i*N(j)*sin(phase(j))+ns(j)*cos(phase(j)); ']]5xH*U
T(j)=4*ns(j)/((B(j)+C(j))*conj(B(j)+C(j))); We51s^ (
ts(j)=1-((1-ns(j))/(1+ns(j)))^2; 52H'aH O1
t1(j)=ts(j)*T(j); /yhG c}h
tf(j)=filmtran(j,1)/100; g(`m#&P>G
difference(j)=(t1(j)-tf(j))^2; qzbpLV|
end @_
Q
G=symsum(difference(j),1,401); YA, vT[kX
G1=subs(G,n1,sym('x(1)')); IA$)E
G2=subs(G1,n2,sym('x(2)')); :1/K$A)^{
G3=subs(G2,k1,sym('x(3)')); ~,jBm^4
G4=subs(G3,k2,sym('x(4)')); P_{jZ}y(
G5=subs(G4,d,sym('x(5)')); +q NX/F
Hvj1R.I/
t< % S_J\
w,/&oe5M+
在matlab下运行 zVL" $ )
>> options=optimset('tolfun',1e-8,'tolx',1e-8); ) }. <lSw
>> [xmin,value,flag,output]=fminsearch(@fun,[1.7,4000,0.005,400,500],options); /j|Rz5@ =
I]dt1iXu_{
Nd] w I|>
结果出错如下： KOqp@K$
+dB/SC-^U
??? Conversion to double from sym is not possible. miCW(mbO8
Error in ==> fminsearch at 175 /xseI)y.B
fv(:,1) = funfcn(x,varargin{:}); %n7 mN])
vsDR@Y}k
哪位高手给看看 SmR" gu
|
|