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資源簡介

分集合并方式比較MATLAB仿真程序 選擇合并法 等增益合并法 最大比值合并法

資源截圖

代碼片段和文件信息

clear
C1N0=10;

C1C2=linspace(-2020500);
?for?i=1:length(C1C2)?
?????C2N0=C1N0/(10^(C1C2(1i)*0.1));
?????if?C1N0>C2N0
????????Cmax=C1N0;
????else
????????Cmax=C2N0;
????end
???EGC(1i)=0.5*C1N0+0.5*C2N0+(sqrt(C1N0)*sqrt(C2N0));
???EGCdB(1i)=10*log10(EGC(1i)/Cmax);
???MGC(1i)=C1N0+C2N0;
???MGCdB(1i)=10*log10(MGC(1i)/Cmax);
???SDdB(1i)=10*log10(1+0.5);
???MGC_EGC(1i)=MGC(1i)/EGC(1i);
???MGC_EGCdB(1i)=10*log10(MGC_EGC(1i));
end?

figure(1)
plot(C1C2EGCdB);
title(‘Plot?of?Improvement?of?all?three?techniques.?(B-Equal?Gain?R-Maximal?Ratio?M-Selection?Diversity)‘)
YLABEL(‘Improvement(dB)‘);
XLABEL(‘C1/C2(dB)‘);
grid?on;
hold?on;
plot(C1C2MGCdB‘r‘);
plot(C1C2SDdB‘m‘);
hold?off;

figure(2);
subplot(221)
plot(C1C2EGCdB);
title(‘Equal?Gain?Combining?Improvement‘)
YLABEL(‘Improvement(dB)‘);
XLABEL(‘C1/C2(dB)‘);
grid?on;

subplot(222)
plot(C1C2MGCdB‘r‘);
title(‘Maximal?Ratio?Combining?Improvement‘)
YLABEL(‘Improvement(dB)‘);
XLABEL(‘C1/C2(dB)‘);
grid?on;

subplot(223)
plot(C1C2SDdB‘m‘);
title(‘Selection?Diversity?Improvement‘)
YLABEL(‘Improvement(dB)‘);
XLABEL(‘C1/C2(dB)‘);
grid?on;

subplot(224)
plot(MGCdBEGCdB)
title(‘Maximal?Ratio?Improvement?over?Equal?Gain?Improvement‘)
YLABEL(‘Equal?Gain?Improvement‘)
XLABEL(‘Maximal?Ratio?Improvement‘)
grid?on;

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件????????1345??2010-05-15?13:40??diversity.m

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