function tiaoxing(bochang,N,m,L,handles) &4Q(>"iL4
global n s+&Ts|c#
global point yBqv'Y
k=2*pi/bochang; p%toD{$
a=m*1e+006; 2A7g}V
deltax=2*a/point;%取单位长度 ^-?5=\`5
xx=-a:deltax:a; ,ef"S
r
L=L*1e+006; 6nqG;z-IXJ
nn=length(xx); NWWag}
u=ones(1,nn); Oa~|a7 `o
jj=1:nn; 4A6D>ChB'E
for n=1:N %进行迭代 gKy@$at&
g^ZsV:D
for b=1:nn ]L#6'|W
uu(b)=sqrt(i*exp(-i*k*L)/(bochang*L)).*... c6FKpdn%
sum(exp(-i*k*((b-jj)*deltax).^2./(2*L)).*u)*deltax;% }`#OA]NZ
W`_pjld
end }1E'a>^|
|g<1n
ma=max(uu);%归一化 Se h[".l
uu=uu./ma; k~f3~- "
u=uu; 1T:M?N8J
axes(handles.axes1); R|aA6} /I
plot(xx,abs(u)) [SGt ~bRJ
axes(handles.axes2); V\Oe ]w
plot(xx,angle(u)) Ah:!
set(handles.edit10,'string',num2str(n));%迭代次数显示到面板 c@9jc^CJ
End