pbcurves_rayleigh_213encoded.m

短波信道抗多音干扰的性能分析及其仿真

% 瑞利衰落信道,维特比译码,(2,1,3)卷积码纠错
Eb_to_Nj_in_dB_Q1=[0,3,6,9,12,15,18,21];
Pb_Q1=[0.4997,0.4914,0.4653,0.3506,5.21e-2,3.24e-3,9.69e-5,7.67e-6];
Eb_to_Nj_in_dB_Q2=[0,3,6,9,12,15,18];
Pb_Q2=[0.4921,0.4708,0.3638,0.122,8.59e-3,4.38e-4,1.75e-5];
Eb_to_Nj_in_dB_Q8=[0,3,6,9,12,15];
Pb_Q8=[0.4709,0.34883,0.1728,1.88e-2,6.36e-4,1.42e-5];

% Draw Pb vs.Eb/Nj performance curves
semilogy(Eb_to_Nj_in_dB_Q1,Pb_Q1,':.',Eb_to_Nj_in_dB_Q2,Pb_Q2,':o',Eb_to_Nj_in_dB_Q8,Pb_Q8,':x');
grid on;
title('瑞利衰落信道下(3,[7,5])纠错码的性能曲线');
xlabel('Eb/Nj (dB)');
ylabel('误码率 Pb');