資源簡介
BOOK_BER.rar

代碼片段和文件信息
clear?all;
snrdB_min=0snrdB_max=14;
snrdB=snrdB_min:1:snrdB_max;
Nsymbols=100000;
snr=10.^(snrdB/10);
%snr=snrdB;
h=waitbar(0‘SNR?Iteration‘);
len_snr=length(snrdB);
for?j=1:len_snr
????waitbar(j/len_snr)
????sigma=sqrt(1/(2*snr(j)));
????error_count=0;
????for?k=1:Nsymbols
????????d=round(rand(1));
????????x_d=2*d-1;
????????n_d=sigma*randn(1);
????????y_d=x_d+n_d;
????????if?y_d>0
????????????d_est=1;
????????else?d_est=0;
????????end
????????if(d_est~=d)
????????????error_count=error_count+1;
????????end
????end
????errors(j)=error_count;
end
close(h)
ber_sim=errors/Nsymbols
ber_theor=q(sqrt(2*snr));
semilogy(snrdBber_theorsnrdBber_sim‘r-o‘);
axis([snrdB_min?snrdB_max?10^(-10)?1])
xlabel(‘SNR?in?dB‘)
ylabel(‘BER‘)
legend(‘theorotical‘‘simulation‘)
?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件????????801??2013-09-06?15:15??BOOK_BER.m
?????文件????????307??2004-07-29?15:28??q.m
-----------?---------??----------?-----??----
?????????????????1108????????????????????2
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