clc
clear?all

fai=30;
wv=532*10^-3;
kk=1;
mm=1;
for?mm=1:0.01:111
????d=mm*wv/sind（fai）;
????x=0:d/9*tand（30）:d*tand（30）;
????for?ii=1:5
????????x=[x?x];
????end
????outp=abs（fftshift（fft（exp（i.*x））））;
????[pmax