資源簡介
8單徑瑞利信道中的四發四收V-BLAST: (1) 請設計一種具體的導引輔助的信道估計方法,用Simulink進行仿真,測量16QPSK調制時的誤碼率性能。畫出比特信噪比與信道估計均方誤差的關系曲線,畫出比特信噪比與誤碼率的關系曲線。 (2) 計算所設計方案的頻譜效率是多少,單位為bit/Hz/s。
代碼片段和文件信息
clear;
N=2;
time=0.01;
x=[10:40];
L=length(x);
for?i=1:L
????snr=x(i);
????sim(‘average_error‘);
????error_code(i)=mean(simout1);
end
figure(1);
plot(xerror_code);
grid?on;
xlabel(‘信噪比‘);
ylabel(‘均方誤差‘);
title(‘信噪比與均方誤差的關系曲線‘);
?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件????????266??2008-12-06?21:49??MYhomework8\誤碼率\my_1.m
?????文件????????354??2008-12-15?19:02??MYhomework8\誤碼率\my_decode.asv
?????文件????????356??2008-12-06?20:42??MYhomework8\誤碼率\my_decode.m
?????文件??????64017??2008-12-15?18:47??MYhomework8\誤碼率\my_error_code.mdl
?????文件???????2911??2008-12-06?21:50??MYhomework8\誤碼率\誤碼率.fig
?????文件??????95304??2008-12-22?01:41??MYhomework8\均方誤差\average_error.mdl
?????文件????????263??2008-12-06?21:16??MYhomework8\均方誤差\my_2.m
?????文件????????356??2008-12-06?20:42??MYhomework8\均方誤差\my_decode.m
?????文件???????2802??2008-12-06?21:45??MYhomework8\均方誤差\均方誤差.fig
?????目錄??????????0??2009-01-09?20:58??MYhomework8\誤碼率
?????目錄??????????0??2009-01-09?20:58??MYhomework8\均方誤差
?????目錄??????????0??2009-01-09?20:58??MYhomework8
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???????????????166629????????????????????12
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