www.pudn.com > programradarsystemdisign.zip > fig2_6a.m

% This program is used to produce Fig. 2.6a 
% It uses the function "improv_fac" 
clear all 
close all 
pfa1 = 1.0e-2; 
pfa2 = 1.0e-6; 
pfa3 = 1.0e-10; 
pfa4 = 1.0e-13; 
pd1 = .5; 
pd2 = .8; 
pd3 = .95; 
pd4 = .999; 
index = 0; 
for np = 1:1:1000 
   index = index + 1; 
   I1(index) = improv_fac (np, pfa1, pd1); 
   I2(index) = improv_fac (np, pfa2, pd2); 
   I3(index) = improv_fac (np, pfa3, pd3); 
   I4(index) = improv_fac (np, pfa4, pd4); 
end 
np = 1:1:1000; 
semilogx (np, I1, 'k', np, I2, 'k--', np, I3, 'k-.', np, I4, 'k:') 
%set (gca,'xtick',[1 2 3 4 5 6 7 8  10 20 30 100]); 
xlabel ('Number of pulses'); 
ylabel ('Improvement factor in dB') 
legend ('pd=.5, nfa=e+2','pd=.8, nfa=e+6','pd=.95, nfa=e+10','pd=.999, nfa=e+13'); 
grid