ula1.m

来自「ULA1一个天线阵的方向图,可以用来估计信号的来波方向,face_directi」· M 代码 · 共 24 行

clear;close all;clc;
%=========参数初始化=========%
num=7;%阵元数
lmda=0.03;%波长
d=0.015;%阵元间距
u=-1:0.01:1;
%=========普通波束形成===========%
s=zeros(1,length(u));
for i=1:length(u)
     s(i)=sum(exp(j*2*pi*d/lmda*u(i).*[0:num-1]))+s(i);
end 
figure(1)
plot(asin(u)*180/pi,20*log(abs(s)/num),'b');grid;hold on;
title('beamform')
xlabel('u-space')
ylabel('dB')
%==========Co-array=============%
co_array=[0 1 4 6];
cs=zeros(1,length(u));
for i=1:length(u)
     cs(i)=sum(exp(j*2*pi*d/lmda*u(i).*co_array))+cs(i);
 end 
plot(asin(u)*180/pi,20*log(abs(cs)/length(co_array)),'r');