sarres.m

此程序给出了不同情况的雷达距离测量仿真平台

% Sythetic Aperture Radar Resolution
% -----------------------------------

clear;clc;clf;

% Input Radar Parameters

f=10000;	 			 % Frequency - Mhz
l=10;		 			 % Antenna length - ft

wl=(300/f)/1854;l=l/6080;

% Set Range 

Rmin=1; Rmax=100;  % Range - nmi
R=Rmin:Rmax;

% Compute SAR resolution

d=.76*R*wl/l;	 	 % Real Beam Reolution
d1=.6*sqrt(R*wl);	 % Unfocussed array resolution
d2=l/2; 	 			 % Focused array resolution

d2=d2*ones(size(R));

% Plot array resolution

loglog(R,d*6080,R,d1*6080,R,d2*6080);grid;
xlabel('Range - nmi');
ylabel('Resolution - ft');
axis([1,100,1,1000]);
title(['SAR Resolution (Real Beam, Unfocused, Focused)']);
text(2,300,'Real Beam'); 
text(3,50,'Unfocused');
text(4,6,'Focused');
text(30,500,['f = ', num2str(f/1000),' GHz']);
text(30,300,['l = ', num2str(l*6080),' feet']);