function tiaoxing(bochang,N,m,L,handles) E:ocx2dp
global n /0qLMlL$
global point O9]+Jd4W
k=2*pi/bochang; .`K<Iug1
a=m*1e+006; K PSHBv-#
deltax=2*a/point;%取单位长度 :;]iUjiC8
xx=-a:deltax:a; uDpCW}
L=L*1e+006; pT` oC&
nn=length(xx); Q)s[ls
u=ones(1,nn); ("B[P/
jj=1:nn; td#B$$[
for n=1:N %进行迭代 cRhu]fv()
'{?7\+o.x
for b=1:nn G F-\WD
uu(b)=sqrt(i*exp(-i*k*L)/(bochang*L)).*... k*3F7']8
sum(exp(-i*k*((b-jj)*deltax).^2./(2*L)).*u)*deltax;% C.[abpc
RrGFGn{
end =k\V~8XZ
VNcxST15a
ma=max(uu);%归一化 x$;I E
uu=uu./ma; Pn*+g!`
u=uu; eI7FbOze
axes(handles.axes1); *+ql{\am4N
plot(xx,abs(u)) N%k6*FBp~
axes(handles.axes2); .W#-Cl&n8
plot(xx,angle(u)) 5mxYzu;#]
set(handles.edit10,'string',num2str(n));%迭代次数显示到面板 .BR2pf|R
End