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盲信道估計(jì)源代碼下載 blind channel estimation 2008-08-29- 19:51 matlab編寫的盲信道估計(jì)程序,對(duì)進(jìn)行信道估計(jì)的朋友有用。

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%?in?this?programe?a?highly?scattered?enviroment?is?considered.?The
%?Capacity?of?a?MIMO?channel?with?nt?transmit?antenna?and?nr?recieve
%?antenna?is?analyzed.?The?power?in?parallel?channel?(after
%?decomposition)?is?distributed?as?water-filling?algorithm

%?the?pdf?of?the?matrix?lanada?elements?is?depicted?too.

clear?all
close?all
clc

nt_V?=?[1?2?3?2?4];
nr_V?=?[1?2?2?3?4];

N0?=?1e-4;
B??=?1;
Iteration?=?1e4;?%?must?be?grater?than?1e2

SNR_V_db?=?[-10:3:20];
SNR_V????=?10.^(SNR_V_db/10);

color?=?[‘b‘;‘r‘;‘g‘;‘k‘;‘c‘];
notation?=?[‘-o‘;‘->‘;‘<-‘;‘-^‘;‘-s‘];

for(k?=?1?:?5)
????nt?=?nt_V(k);
????nr?=?nr_V(k);
????for(i?=?1?:?length(SNR_V))
????????Pt?=?N0?*?SNR_V(i);
????????for(j?=?1?:?Iteration)
????????????H?=?random(‘rayleigh‘1nrnt);
????????????[S?V?D]?=?svd(H);
????????????landas(:j)??=?diag(V);
????????????[Capacity(ij)?PowerAllo]?=?WaterFilling_alg(Ptlandas(:j)BN0);
????????end
????end

????f1?=?figure(1);
????hold?on
????plot(SNR_V_dbmean(Capacity‘)notation(k:)‘color‘color(k:))
????
????f2?=?figure(2);
????hold?on
????[yx]?=?hist(reshape(landas[1min(ntnr)*Iteration])100);
????plot(xy/Iteration‘color‘color(k:));
????clear?landas
end

f1?=?figure(1)

legend_str?=?[];
for(?i?=?1?:?length(nt_V))
????legend_str?=[?legend_str?;...
????????{[‘nt?=?‘num2str(nt_V(i))‘??nr?=?‘num2str(nr_V(i))]}];
end
legend(legend_str)
grid?on
set(f1‘color‘[1?1?1])
xlabel(‘SNR?in?dB‘)
ylabel(‘Capacity?bits/s/Hz‘)

f2?=?figure(2)
legend(legend_str)
grid?on
set(f2‘color‘[1?1?1])
ylabel(‘pdf?of?elements?in?matrix?landa?in?svd?decomposition?of?marix?H‘)

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----

?????文件???????1661??2006-10-03?09:17??盲信道估計(jì)源代碼\mimo\MIMO_System.m

?????文件????????779??2006-10-02?20:37??盲信道估計(jì)源代碼\mimo\WaterFilling_alg.m

?????文件??????24064??2009-04-13?13:24??盲信道估計(jì)源代碼\mimo\盲信道估計(jì)源代碼下載.doc

?????目錄??????????0??2006-10-04?15:40??盲信道估計(jì)源代碼\mimo

?????目錄??????????0??2009-04-13?13:24??盲信道估計(jì)源代碼

-----------?---------??----------?-----??----

????????????????26504????????????????????5


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