pbcurves_awgn_uncoded.m

短波信道抗多音干扰的性能分析及其仿真

% AWGN信道,维特比译码,无纠错编码的性能曲线
Eb_to_Nj_in_dB_Q1=[0,1,3,5,7,9,11,13,15,17];
Pb_Q1=[0.4591,0.4571,0.4601,0.4427,0.3372,0.0642,4.5e-003,3.2525e-004,6.175e-005,1.73e-005];
Eb_to_Nj_in_dB_Q2=[0,1,3,5,7,9,11,13,15];
Pb_Q2=[0.4595,0.4574,0.4417,0.3816,0.1479,0.0137,9.35e-004,1.31e-004,2.595e-005];
Eb_to_Nj_in_dB_Q4=[0,1,3,5,7,9,11,13,15];
Pb_Q4=[0.4643,0.4608,0.4224,0.2899,0.0586,0.0047,4.0075e-004,5.25e-005,1.575e-005];
Eb_to_Nj_in_dB_Q8=[0,1,3,5,7,9,11,13,15];
Pb_Q8=[0.4701,0.4549,0.3962,0.2237,0.0341,0.0026,2.1775e-004,3.425e-005,1.055e-005];
% Eb_to_Nj_in_dB_Q1632=[0,1,3,5,7,9,11,13];
% Pb_Q_16=[0.4625,0.4493,0.3725,0.1929,0.0303,0.0025,2.13e-004,3.125e-005];
% Pb_Q_32=[0.4600,0.4308,0.3658,0.2287,0.0615,5.6e-003,3.215e-004,3.25e-005];
% Draw picture
semilogy(Eb_to_Nj_in_dB_Q1,Pb_Q1,':.',Eb_to_Nj_in_dB_Q2,Pb_Q2,':o',Eb_to_Nj_in_dB_Q4,Pb_Q4,':+',Eb_to_Nj_in_dB_Q8,Pb_Q8,':x');
%axis([-inf,inf,5e-6,1]);
grid on;
title('AWGN信道下无纠错码的性能曲线');
xlabel('Eb/Nj (dB)');
ylabel('误码率 Pb');
legend('单音干扰','多音干扰 Q=2','多音干扰 Q=4','多音干扰 Q=8');