function tiaoxing(bochang,N,m,L,handles) d/:zO4v3
global n cLe659 &
global point bi[gyl#
k=2*pi/bochang; Y$?<y
a=m*1e+006; 9 l :Bum)9
deltax=2*a/point;%取单位长度 l %{$CmG\
xx=-a:deltax:a; ,~-
dZs
L=L*1e+006; efF>kcIC
nn=length(xx); pjX')i<
u=ones(1,nn); D +vHl}
jj=1:nn; I8 {2cM;
for n=1:N %进行迭代 38T2IN
K"r'w8 P
for b=1:nn n/5)}( }K
uu(b)=sqrt(i*exp(-i*k*L)/(bochang*L)).*... !jxz2Q
sum(exp(-i*k*((b-jj)*deltax).^2./(2*L)).*u)*deltax;% f ^f{tOX
we&g9j'
end !&D &Gs
t`X-jr)g
ma=max(uu);%归一化 }
. cP
uu=uu./ma; YQ}bG{ V
u=uu; OQON~& ~
axes(handles.axes1); wg[ D*a
plot(xx,abs(u)) :kDHwYv$
axes(handles.axes2); [/ E_v gZ
plot(xx,angle(u)) DKfw8"L]
set(handles.edit10,'string',num2str(n));%迭代次数显示到面板 BJI
R !J
End
