基于bils子空間跟蹤的自適應esprit算法研究

1、分類號_______________________密級______________________UDC_______________________編號______________________桂林電子工業(yè)學院研究生學位論文題目基于BiLS子空間跟蹤的自適應ESPRIT算法研究（英文）StudyonAdaptiveESPRITAlgithmBasedonBiLSSubspaceTracking研究生姓名：周旦指導教師姓名、職務：歐

2、陽繕教授申請學位：工學碩士學科、專業(yè)：信號與信息處理提交論文日期：2005年4月論文答辯日期：2005年6月年月日萬方數(shù)據(jù)摘要iiStudyonAdaptiveESPRITAlgithmBasedonBiLSSubspaceTrackingABSTRACTABSTRACTHighresolutiondirectionofarrivalestimationplaysanimptantroleinsmartantennasystem.Iti

3、ncludessourcelocalizationsourcetracking.Inmodernmobilecommunicationmobilestation(MS)isalwaysmoving.Soestimatingthetimevaryingdirectionsofarrival(DOA’s)isaverypracticalsignificantproblem.Thispaperstudiesmethodsfestimating

4、thetimevaryingDOA’sincludingonedimension(1d)twodimension(2d).WeproposeamethodfestimatingthetimevaryingDOA’sbasedonbiiterativeleastsquaremethodfsubspacetracking(BiLSmethod).Itincludes1d2d.Thismethodislowerincomputationcos

5、tthanthecrespondingmethodwhichbasesonbiiterativesingularvaluedecompositionmethodfsubspacetracking(BiSVDmethod).Theprimarycontributionsinthisdissertationaresummarizedbelow:1.A1dBiLSadaptiveESPRITalgithmisproposed.It’sdiff

6、erentfromanyotherexisting1dadaptiveESPRITalgithm.itisprovedtobecrectbycomputersimulationresults.2.Westudytheexisting2dadaptiveESPRITalgithm.thenweproposeanew2dmethod.Itis2drealtimevirtualESPRITalgithm.Thisalgithmisalsoba

7、sedonBiLSmethodbyusingthedatamodelin2dvirtualESPRIT.Computersimulationresultsareprovidedtodemonstratetheeffectivenessoftheproposedalgithm.3.WecompareanalyzetheBiLSadaptiveESPRITalgithmstheBiSVDadaptiveESPRITalgithmsinclu

8、ding1d2d.TheresultsofcomparisonshowthatthemethodsweproposegetanadvantageovertheBiSVDadaptiveESPRITalgithmsinoperationcomplexitywithlittlelossofperfmance.Keywds:DirectionofArrivalSubspaceTrackingBiiterativeLeastSquareMeth