| fanyushan |
2010-07-19 14:12 |
fminsearch应用出错
我的M文件如下： aF> &X-2
function [G5]=fun(x); 8 uA!Vrp3
syms n1 n2 k1 k2 d; goJ'z|))
[subwave,nsub]=textread('subout.txt','%f %f'); 6r`Xi&
[filmwave,filmtran]=textread('filmtr.dat','%f %f'); 4`") a M
[p,q]=size(subwave); <*o V-A
for j=1:p; -TS,~`O
wavel(j)=subwave(j,1); NnaO!QW%
n(j)=n1+n2/((wavel(j))^2); rU 1Ri
k(j)=k1*exp(k2/wavel(j)); j}6h}E&dEr
N(j)=n(j)-i*k(j); Gz(l~!n~a
phase(j)=2*pi*N(j)*d/wavel(j); M; YJpi
ns(j)=nsub(j,1); F&
B(j)=cos(phase(j))+ns(j)*i*sin(phase(j))/N(j); !-ZY _
C(j)=i*N(j)*sin(phase(j))+ns(j)*cos(phase(j)); S27s Rxfr
T(j)=4*ns(j)/((B(j)+C(j))*conj(B(j)+C(j))); =J'Q%qN<Zd
ts(j)=1-((1-ns(j))/(1+ns(j)))^2; dEW= V"W
t1(j)=ts(j)*T(j); (B! DBnq
tf(j)=filmtran(j,1)/100; Qraa0]56
difference(j)=(t1(j)-tf(j))^2; q4,/RZhzh
end zV(aw~CbZ
G=symsum(difference(j),1,401); Ty7)j]b"zl
G1=subs(G,n1,sym('x(1)')); :39arq
G2=subs(G1,n2,sym('x(2)')); k(_OhV_
G3=subs(G2,k1,sym('x(3)')); h.NC G96S
G4=subs(G3,k2,sym('x(4)')); 0f_A"K
G5=subs(G4,d,sym('x(5)')); xC}' "``s
U} w@,6
<`wOy [e
. i^ @v<+
在matlab下运行 %,zHS?)l
>> options=optimset('tolfun',1e-8,'tolx',1e-8); -<M+ $ hK\
>> [xmin,value,flag,output]=fminsearch(@fun,[1.7,4000,0.005,400,500],options); k;)mc+ ~+
ef/43+F^x
&>QxL d#
结果出错如下： !YZKa-
*zW]IQ'A
??? Conversion to double from sym is not possible. X L'\$f
Error in ==> fminsearch at 175 $xcZ{C
fv(:,1) = funfcn(x,varargin{:}); f .uy;v
CO mu.'%*
哪位高手给看看 34nfL: y
|
|