%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%?Beam?patterns:?N?=?10
%?（a）?u-space
%?（b）?theta-space
%?function?called:?polardb
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

clear?all;
close?all;

N?=?10;
M?=?（N-1）/2;
n?=?（-M:M）.‘;
u?=?-1:0.001:1;
vv?=?exp（j*pi*n*u）;
u0?=?0;
figure;
hold?on;
for?m?=?-N/2+1:N/2
???k?=?m+N/2;
???w（:k）?=?1/N*exp（-j*pi*n*（u0-2*m/N））;
???B（k:）?=?w（:k）‘*vv;
????plot（ureal（B（k:）））
???grid?on
end
hold?off;
xlabel（‘\it?u‘‘Fontsize‘?14）
ylabel（‘Beam?pattern‘‘Fontsize‘14）
%title（‘N?=?10‘）

theta?=?pi*（-1:0.001:1）;
vt?=?exp（j*pi*n*cos（theta））;
lim?=?-40;
figure;
for?m?=?-N/2+1:N/2
???k?=?m+N/2;
???Bt（k:）?=?w（:k）‘*vt;
???rho（k:）?=?20*log10（abs（Bt（k:）））;
???rp（k:）?=?rho（k:）;
???for?l?=?1:len

?屬性????????????大小?????日期????時(shí)間???名稱(chēng)
-----------?---------??----------?-----??----

?????文件???????1085??2011-12-28?15:13??波束方向圖\fig3_52.m

?????文件???????4910??2000-08-30?12:45??波束方向圖\polardb.m

?????目錄??????????0??2011-12-28?15:14??波束方向圖

-----------?---------??----------?-----??----

?????????????????5995????????????????????3