| fanyushan |
2010-07-19 14:12 |
fminsearch应用出错
我的M文件如下： s;64N'HH
function [G5]=fun(x); z&{5;A}Q@
syms n1 n2 k1 k2 d; \U[ {z&]~
[subwave,nsub]=textread('subout.txt','%f %f'); Q)LM-ZJKQ
[filmwave,filmtran]=textread('filmtr.dat','%f %f'); mL_ j4=ER@
[p,q]=size(subwave); Oh'Y0_oB>
for j=1:p; o]p|-<I Q
wavel(j)=subwave(j,1); 4( 1(e
n(j)=n1+n2/((wavel(j))^2); ?_Q/}@`
k(j)=k1*exp(k2/wavel(j)); ; uW}`Q<
N(j)=n(j)-i*k(j); hb^7oq"a
phase(j)=2*pi*N(j)*d/wavel(j); 9\]^|?zQ`
ns(j)=nsub(j,1); U)o$WH.b
B(j)=cos(phase(j))+ns(j)*i*sin(phase(j))/N(j); l?F b ='#
C(j)=i*N(j)*sin(phase(j))+ns(j)*cos(phase(j)); 1f8GW
T(j)=4*ns(j)/((B(j)+C(j))*conj(B(j)+C(j))); QC X8IIHG
ts(j)=1-((1-ns(j))/(1+ns(j)))^2; j 'BMAn ?
t1(j)=ts(j)*T(j); iTV) NsC}
tf(j)=filmtran(j,1)/100; 7?kIV P1r
difference(j)=(t1(j)-tf(j))^2; dVFf.
end vsr[ur[eP
G=symsum(difference(j),1,401); sH? /E6
G1=subs(G,n1,sym('x(1)')); &bp=`=*
G2=subs(G1,n2,sym('x(2)')); W@Lu;g.Yc
G3=subs(G2,k1,sym('x(3)')); 2w-51tqm
G4=subs(G3,k2,sym('x(4)')); q7 -L53.x
G5=subs(G4,d,sym('x(5)')); 8G5m{XTS(
jMN[J|us51
gF5a5T,
hQDTS>U
在matlab下运行 +C(/ Lyo}
>> options=optimset('tolfun',1e-8,'tolx',1e-8); S -'fS2
>> [xmin,value,flag,output]=fminsearch(@fun,[1.7,4000,0.005,400,500],options); pTyi!:g3W
YcN!T"w J@
nYa*b=[.
结果出错如下： Wxbq)Z[V
& _g TD
??? Conversion to double from sym is not possible. j~e;DO
Error in ==> fminsearch at 175 \;m H(-
fv(:,1) = funfcn(x,varargin{:}); wlEo"B A
(<Th=Fns?
哪位高手给看看 e4z1`YLsG
|
|