%?DOA?estimation?by?MUSIC?
%?Developed?by?xiaofei?zhang?（南京航空航天大學(xué)?電子工程系?張小飛）
%?EMAIL:zhangxiaofei@nuaa.edu.cn
clear?all
close?all
derad?=?pi/180;????????%?deg?->?rad
radeg?=?180/pi;
twpi?=?2*pi;
kelm?=?8;???????????????%?陣列數(shù)量
dd?=?0.5;???????????????%?space?
d=0:dd:（kelm-1）*dd;?????%?
iwave?=?3;??????????????%?number?of?DOA
theta?=?[10?30?60];?????%?角度
snr?=?10;???????????????%?input?SNR?（dB）
n?=?500;?????????????????%?
A=exp（-j*twpi*d.‘*sin（theta*derad））;%%%%?direction?matrix
S=randn（iwaven）;
X=A*S;
X1=awgn（Xsnr‘measured‘）;
Rxx=X1*X1‘/n;
InvS=inv（Rxx）;?%%%%
[EVD]=eig（Rxx）;%%%%?
EVA=diag（D）‘;
[EVAI]=sort（EVA）;
EVA=fliplr（EVA）;
EV=fliplr（EV（:I））;

%?MUSIC
for?iang?=?1:361
????????angle（iang）=（iang-181）/2;
????????phim=derad*angle（iang）;
????????a=exp（-j*twpi*d*sin（phim））.‘;
????????L=iwave;????
????????En=EV（:L+1:kelm）;
????????SP（iang）=（a‘*a）/（a‘*En*En‘*a）;
end
???
%?
SP=abs（SP）;
SPmax=max（SP）;
SP=10*log10（SP/SPmax）;
h=plot（angleSP）;
set（h‘Linewidth‘2）
xlabel（‘a(chǎn)ngle?（degree）‘）
ylabel（‘magnitude?（dB）‘）
axis（[-90?90?-60?0]）
set（gca?‘XTick‘[-90:30:90]）
grid?on??

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2020-05-31?11:03??MATALB?程序\
?????目錄???????????0??2020-05-31?11:01??MATALB?程序\1.MUSIC算法MATLAB程序\
?????文件????????1122??2010-08-16?09:41??MATALB?程序\1.MUSIC算法MATLAB程序\doa_music.m
?????目錄???????????0??2020-05-31?11:01??MATALB?程序\10.L型陣下基于2D-MUSIC的二維DOA估計(jì)算法\
?????文件????????1233??2012-12-02?13:20??MATALB?程序\10.L型陣下基于2D-MUSIC的二維DOA估計(jì)算法\main_2d_doa_music.m
?????目錄???????????0??2020-05-31?11:01??MATALB?程序\11.一階前向預(yù)測(cè)的DOA估計(jì)算法MATLAB程序\
?????文件?????????177??2012-12-02?13:35??MATALB?程序\11.一階前向預(yù)測(cè)的DOA估計(jì)算法MATLAB程序\array_manifold.m
?????文件????????1663??2012-12-02?13:39??MATALB?程序\11.一階前向預(yù)測(cè)的DOA估計(jì)算法MATLAB程序\lp_doaestimation.m
?????文件?????????605??2012-12-02?13:34??MATALB?程序\11.一階前向預(yù)測(cè)的DOA估計(jì)算法MATLAB程序\receive_signal.m
?????文件?????????294??2012-12-02?13:31??MATALB?程序\11.一階前向預(yù)測(cè)的DOA估計(jì)算法MATLAB程序\steering_vector.m
?????目錄???????????0??2020-05-31?11:01??MATALB?程序\12.?寬帶信號(hào)DOA估計(jì)的非相干信號(hào)子空間（ISM）MATLAB程序\
?????文件????????2131??2012-12-02?13:47??MATALB?程序\12.?寬帶信號(hào)DOA估計(jì)的非相干信號(hào)子空間（ISM）MATLAB程序\ISM_code.m
?????目錄???????????0??2020-05-31?11:01??MATALB?程序\13.信源數(shù)估計(jì)MDL算法MATLAB程序\
?????文件????????2138??2012-12-02?14:06??MATALB?程序\13.信源數(shù)估計(jì)MDL算法MATLAB程序\mdl_sourcenumber.m
?????目錄???????????0??2020-05-31?11:01??MATALB?程序\14.均勻線陣DOA估計(jì)Unitary?-ESPRIT算法MATLAB程序\
?????文件?????????959??2012-12-02?14:20??MATALB?程序\14.均勻線陣DOA估計(jì)Unitary?-ESPRIT算法MATLAB程序\test_unitary_esprit.m
?????文件????????2649??2012-12-02?14:20??MATALB?程序\14.均勻線陣DOA估計(jì)Unitary?-ESPRIT算法MATLAB程序\unitary_esprit.m
?????目錄???????????0??2020-05-31?11:01??MATALB?程序\15?四元數(shù)MUSIC的MATLAB程序\
?????文件????????1673??2012-12-03?09:58??MATALB?程序\15?四元數(shù)MUSIC的MATLAB程序\AssignAgain.m
?????文件?????????546??2012-12-03?09:58??MATALB?程序\15?四元數(shù)MUSIC的MATLAB程序\ColToRow.m
?????文件?????????526??2012-12-03?09:58??MATALB?程序\15?四元數(shù)MUSIC的MATLAB程序\ConjQVector.m
?????文件?????????693??2012-12-03?09:58??MATALB?程序\15?四元數(shù)MUSIC的MATLAB程序\FVeToQVe.m
?????文件?????????981??2012-12-03?09:58??MATALB?程序\15?四元數(shù)MUSIC的MATLAB程序\IsoMatrix.m
?????文件?????????525??2012-12-03?09:58??MATALB?程序\15?四元數(shù)MUSIC的MATLAB程序\PolarSource.m
?????文件?????????813??2012-12-03?09:58??MATALB?程序\15?四元數(shù)MUSIC的MATLAB程序\QuatMuti.m
?????文件?????????796??2012-12-03?09:58??MATALB?程序\15?四元數(shù)MUSIC的MATLAB程序\SteerVector.m
?????文件?????????822??2012-12-03?09:58??MATALB?程序\15?四元數(shù)MUSIC的MATLAB程序\VectorMulti.m
?????文件?????????502??2012-12-03?09:58??MATALB?程序\15?四元數(shù)MUSIC的MATLAB程序\hpc.m
?????文件????????2978??2012-12-03?10:00??MATALB?程序\15?四元數(shù)MUSIC的MATLAB程序\main.m
?????目錄???????????0??2020-05-31?11:01??MATALB?程序\16.LCMV波束形成算法MATLAB程序\
?????文件????????1438??2012-12-10?10:19??MATALB?程序\16.LCMV波束形成算法MATLAB程序\lcmv_beamform.m
............此處省略41個(gè)文件信息