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1、西南交通大學(xué)碩士學(xué)位論文基于信號循環(huán)平穩(wěn)特性的到達(dá)角估計姓名：李川申請學(xué)位級別：碩士專業(yè)：信號與信息處理指導(dǎo)教師：王建英20060401露贏交邋大學(xué)碩士研究生學(xué)佼論文繁Il頁ABSTRACTDirccfionofAIrival(forc8hortAOA)estiInationisaprimarysubjectinspatialspectnlmestimationfield．ItisappliedmarkedlytomilitaryanddVileconomyf逸lds，such鑫s蔽e娃∞nie
2、counto￡搬oasu咒s，蕊obile∞瓣mu曩ea{ion，so鞋蝎etc。Asl轟。mostdassi。alD8A髓ti璉la畦。玨me氌。蓮，MUSlealgof矗hmeo戤l纛estimatetheDOA0fsignalsagoIlicIywitllgreate艇ciency，whenthesignalsareno-coherenl，narrowband蛆dbasedonexactmodel．However'itsres01vingabilitywoulddecline，cvenbo
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4、iccross-cOrrelated，whefeasOtherscOuldbecycliccross-uncorrelated．Us組gtheVmuesofbettersigIlalselectiVity，betterTesolutiOnpower，andbeiIlgjfrelwamtostatisticalcharacteristicofnoise，the鑷p∞tedsigna
5、sco趣dbeid囂n{主￡：ied，a玨d氌e∞莪e蝴1toⅡesaad丑oisoeouldbe盤ie王蓮ed，w
6、i}矗瞧。eycl{e∞積lg墩難搬e氆。蠢。HOw鉀讎，醵Iof毛heCyc蛀cMUSK=salgOrithmsneedtosearchspatia玉spectnlminallareas．WhenthesigIlalsar罄insmallareas，quantityofoperationwillbehuge，andit’sgoingtobeworse，whileestimatingt、)I，o—dimensionalangIesofarrival(fonshortAOA)．1鑫燃s氌聰is，幻
7、adV勰∞l量撩es趣滋耗I玨。整ci鐮蟛ofc弦ioMVS
8、蕊蠢l靜蠢囊趣，andtoimproVetheest摭ladOnper￡o趣anceoftwO*dimensionalAOA，followingworkhasbeendone：Firstly，compa王redwithMUSICalgoriIhm，thevinueofthecyclic-MUSICalgOrith璉1hasbeeⅡvalidatedbythesimulationl℃sults。A硅d撩e珥a玨扛翠∞V曲cycl然穗蛀。
9、玨a翠幺sial剁搬趲w赫grea重托solv攮g鑫bilityispfesonted，get垃盎gfi畦o￡壤odisadvantageo￡C簿cMuSlcs越gori攮溉whoseres01Vingabilityforsi印alisnotVeryideal，andw血OsetimeofsearchingspatialspectruHlpinnaclearetoolong．儆ingadVantageofFFEsuchaslessorsanlples，r印idnos8，onlythe1imite
10、dfieldwherethesi趴alexistsisconsidered．飄en，想er玨南交通穴攀碩士疆究生學(xué)披論文第1II茨searc圭lingsp。ctmmpinnaclewiminthelimitedarca，theDOAscouldbeObtainedinsteadofsearchingspatialspectnlmiIlallarcas．ItsgDOdemciencyandgreatperfomanccareillustratedbythesimulationresults．Att
