?? psk.asv
字號(hào):
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% 對(duì)M=4的PSK通信系統(tǒng)進(jìn)行蒙特卡羅仿真 %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
echo on
SNRindB1=0:2:10;
SNRindB2=0:0.1:10;
for i=1:length (SNRindB1),
[pb , ps]=cm_sm32 (SNRindB1 (i)); %仿真比特和符號(hào)誤碼率
smld_bit_err_prb (i)=pb;
smld_symbol_err_prb (i)=ps;
end;
for i=1:length (SNRindB2),
SNR=exp(SNRindB2(i)*log(10)/10); %信噪比
theo_err_prb(i)=Qfunct(sqrt(2*SNR)); %理論比特誤碼率
end;
%%%%%%%隨后繪圖曲線%%%%%%%
semilogy (SNRindB1,smld_bit_err_prb,'*');
hold
semilogy (SNRindB1,smld_symbol_err_prb,'O');
semilogy (SNRindB2,theo_err_prb);
grid
xlabel('Eb/No in dB')
ylabel('error probability')
title('4PSK Monte Clarlo simulation')
gtext('(注:“—”theoretical 誤碼率;“*”誤比特率;“o”誤符號(hào)率)')
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