this is my coding for beamplot. i have problem with polar plots. it is not working well. can anyone help me with this one. thanks in advance.

1 次查看（过去 30 天）

Kugen Raj 2011-11-13

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/21118-this-is-my-coding-for-beamplot-i-have-problem-with-polar-plots-it-is-not-working-well-can-anyone

close all;clear all;
freq=400e6;%input('frequency (e.g 900e6 for 900MHz):');
lambda=3e8/freq
d_ratio=2;%input('ratio of lambda/d:');
d=1/2;%lambda/d_ratio;
M=7;%input('M, number of elements:');
phi_s=50;%input('angle of interest(-90 to 90):');
u_s=(d/lambda)*sin(phi_s*pi/180);
x=5; %step up for plotting graph
SS=zeros(M,1);
ZZ=zeros(1,M);
YY=zeros(1,(180/x));
s=exp(-i*2*pi*u_s*(0:(M-1)))/sqrt(M); 
s=s';
c_mf=s';
J=0;
for angle=-180:x:180
      J=J+1;
      W=zeros(1,M);
      u_s=(d/lambda)*sin(angle*pi/180);
      SS=zeros(M,1);
      for I=1:M
      SS(I,1)=exp(-i*2*pi*u_s*(I-1))/sqrt(M); 
      end
YY(:,J)=c_mf*SS;
end
     YY=abs(YY);
       YY=YY/max(YY);
  J=0;
  angle=-180:x:180;
figure(1),close all
plot(angle,YY,'m'), axis([-90 90 0 1]),hold on;
figure(2);
polar(angle,YY,'m');*%this doesn't work well, the polar graph is wrong *