function tiaoxing(bochang,N,m,L,handles) e'sS",o*
global n {9FL}Jrt
global point C/4r3A/u
k=2*pi/bochang; _<GXR
?
a=m*1e+006; q|}O-A*wa
deltax=2*a/point;%取单位长度 EbeSl+iMx_
xx=-a:deltax:a; >`l^
C
L=L*1e+006; 'ka}x~EF
nn=length(xx); <G0Ut6J>
u=ones(1,nn); ,9M2'6=
jj=1:nn; "(iDUl
for n=1:N %进行迭代 9^&B.6! 6
g~2=he\C
for b=1:nn }G "EdhSl
uu(b)=sqrt(i*exp(-i*k*L)/(bochang*L)).*... W!"Oho'
sum(exp(-i*k*((b-jj)*deltax).^2./(2*L)).*u)*deltax;% <J>k%,:B
B@@tKn_CQ
end ^E_chx-e}
_f~$iY
ma=max(uu);%归一化 v cUGBGX_&
uu=uu./ma; +,g!xv4Q
u=uu; G?, "AA;
axes(handles.axes1); [&IcIZ
plot(xx,abs(u)) 4:Oq(e_(
axes(handles.axes2); ,|GjrT{vf
plot(xx,angle(u)) Av0(zA2
set(handles.edit10,'string',num2str(n));%迭代次数显示到面板 CED[\n
End