微惯导网络系统应用的关键技术研究

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1、compensationformulaforthedeterministicerrorofmicroinertialsensorisalsodeducedinthispaper.Randomdriftisanothermajorfactoraffectingtheaccuracyofgyro.Thegenerationmechanismofrandomdriftisrelativelycomplex,whichishardtobecompensatedforbycalibrationbeforehand.Inthispaper,randomgyrodriftisstu

2、died.Andtimeseriesanalysisandwaveletanalysisisusedtomodelandcompensatefortherandomdrifterror.Usetimeseriesanalysistheoryandbuildthemodelbytentativemodelingmethod.AndtheorderofthemodelisdeterminedbasedonAICcriteriaandtheautocorrelationfunctionofresiduals.ThenanadaptiveKalmanfilterisdesig

3、nedtotestit.Thebasictheoryofwavelettransformanddenoisingisanalyzed.AndConsideringvariousfactors,waveletthresholdnoisereductionmethodischoseforprocessingthegyrorandomdriftsignal.Andthebotheffectsofthecompensationiscompared.Finally,waveletthresholddenoisingmethodischoseforthecompensationf

4、orgyrorandomdrift.CombinedwiththecharacteristicsofINSforship,theangularratematchingmeasurementsfortransferalignmentisderived,andthecompensationformulafortheleverarmeffectsisgiven.Then,thestateequationandobservationequationofangularratematchingtransferalignmentareestablished.Simplifyitan

5、ddesignthekalmanfilterforestimatingtheinstallationerroranglebetweenthemasterINSandthesubINS.Andasimulationexperimentisgiveninthethesis.ThedesignofmicroinertialnetworksystemsoftwareiscompletedbythemixedprogrammingofVC++andMATLAB.Thesoftwareison-linesimulationtestedbytheuseofdual-axisturn

6、table.KeyWordsMEMS;Timeseries;Waveletthresholdnoisem;Angularratematching万方数据目录目录摘要...................................................................................................................................IAbstract.................................................................

7、..............................................................II第1章绪论..................................................................................错误!未定义书签。1.1课题研究背景及意义................................................................错误!未定义书签。1.2国内外发展现状及趋势....................