beam_pattern_ra2.asv

声纳波束形成图

clear; 
N=32;                                             %基阵个数
f=30000;                                          %频率范围
d=0.068625;   
%基阵间距
i=1;
for seta=0:pi/1800:pi
   
a=sin(n*pi*d*f*sin(seta)/1500);
b=n*sin(pi*d*f*sin(seta)/1500);
boshu(i)=20*log10(a/b);
i=i+1;
end
boshu
plot([0:pi/1800:pi],boshu);