48300.基于小波包的變形信息提取

1、中國石油大學碩士研究生學位論文華東(申請工學碩士學位)基于小波包的變形信息提取學科專業(yè)地圖制圖學與地理信患工程培養(yǎng)方向：數字城市的關鍵技術碩士生：馮清玲指導教師：萬劍華(教授)曲國慶(教授)論文完成日期：2007年4月InformationExtractionofDeformationBasedonWaveletPacketTransformFENGQingling(CartographyandGeographicInformation

2、Engineering)DiremedbyProfessorWANJianhuaandProfessorQuOaoqmgAbstractDeformationisonekindofnaturalphenomenonwhichmeansthechangesofshape，sizeandlocationofdeformablebodiescausedbyvariousfactorsOncethevalueofdeformation麟c∞ds

3、itsallowablevaluesomedamagewillbecausedAsthedeformationischangingallthetime，itisnecessarytoobservethedeformablebodiessoastoknowaboutthesituationofdeformationHoweverasaresultoftheinfluenceofsubjectivefactorsandobjectivefa

4、ctorsthedataobtainedfromobservationcontainsallkindsofnoiseInordertoobtaintherealinformationofdeformationweneedeffectivemethodstoeliminatethenoisesWaveletpacketanalysistheorywhichistheextensionofwaveletanalysistheoryisals

5、oasignalprocessingmethodItisdevelopedrapidlyinrecentyearsItcananalysissignalmoreparticularlythanwaveletmethodItcananalyzesignalinallfa=equencydomainanditisappliedbroadlytosi割|alandimageprocessingInthispaperdeformationdat

6、aisregardedasasignalWaveletpacketanalysismethodisappliedtothedeformationsignaln“workiSdoneasfollows：(1)ThemaintechniquesforobtainingdeformationdataisintroducedandtheinfluencefactorsiSindicatedThenthemethodsindeformationd