小波域的多分辨率陣列信號處理.pdf

1、東北大學(xué)碩士學(xué)位論文小波域的多分辨率陣列信號處理姓名：薛延波申請學(xué)位級別：碩士專業(yè)：控制理論與控制工程指導(dǎo)教師：汪晉寬20040201東北欠：摯碩士學(xué)位論文英文摘要WaveletDomainMUItiresolutionArraySignalProcessingAbstractMobilecommunicationhasenjoyedexplosivegrowthoverthepastdecadeTheresearchofarraysi

2、gnalprocessingshowspromiseforimprovingcapacityofmobilesystemsandprovidingimprovedsafetythroughdirection—ofarrival(DOA)estimationandinterferencerejectionArraysignalprocessinginvolvesmanipulationofspatialsignalsinducedonva

3、riousantennasensorsItintegratesthescienceslikeinformationtheorycontroltheory，signaldetectiontechnologydigitalsignalprocessing，smartantennatheoryprobabilityandstatistics，randomprocess，etcWavelettheoryisanemergingtimefrequ

4、encydomainmethodinsignalanalysisfields，whichisalsoageneralizationofsubbanddecompositionfiltersThoughitiswidelyusedtoprocesstheimage，video，andaudio，itsValidityinarraysignalprocess—inghasnotbeenfullystudiedexceptforsomerec

5、entlypublishedpapersThisthesisprovidesacomprehensiveandsystemicalinvestigationofapplicationsofwavelettheoryinthisareaItisdividedintosixchaptersChapter1showsthesignifiicanceoftheworksdoneinthethesis，withreferencestothesta

6、tusofnowadaysarraysignalprocessingtechniqueInChapter2，themathematicalmodelofarraysignalprocessingandsomeDOAestimationmethods，aswellasthepreprocessingapproaches，isformulatedBackgroundsofwavelettheoryandsubbanddecompositio

7、narealsoprovidedSomestudyresults，includingequivalenceanalysisoftemporal—spatialfre—quencywaveletpacketdecompositionbasedminimumdescriptionlengthrWP—MDL)criteria，andwaveletpacketbasedDOAestimationtechnique(wPMUSIC)areinve

8、s—tigatedthroughChapter3toChapter5Simulationsshowthatwavelettheoryisappli—cabletoarraysignalprocessingandcanbeagoodcandidateforhighresolutionDOAestimationmethodFeaturesoftheproposedschemesareconcludedinChapter6。Thisconcl

9、usionpartbringstogethersomepotentialtopicsthatrequirefurtherstudyinthisarea，likethedesignoffrequencydomaincompactlysuppogedwaveletandwavelettheoryinmultipathscenariosKeyWordsdirection—ofarrival(DOA)，arraysignalprocessing