Double-Epoch Algorithm in Rapid Positioning Using Single Frequency GPS Receivers-中国期刊网

摘要 Anewalgorithm,calledasDouble-EpochAlgorithm(DEA)isproposedinGPSrapidpositioningusingtwoepochsinglefrequencyphasedatainthispaper.Firstly,thestructurecharacteristicofthenormalmatrixinGPSrapidpositioningisanalyzed.Then,inthelightofthecharacteristic,basedonTIKHONOVregularizationtheorem,anewregularizerisdesignedtomitigatetheill-conditionofthenormalmatrix.TheaccuratefloatambiguitysolutionsandtheirMSEM(MeanSquaredErrorMatrix)areobtained,usingtwoepochsinglefrequencyphasedata.CombinedwithLAMBDAmethod,DEAcanfixtheintegerambiguitiescorrectlyandquicklyusingMSEMinsteadofthecovariancematrixoftheambiguities.Comparedwiththetraditionalmethods,DEAcanimprovetheefficiencyobviouslyinrapidpositioning.So,thenewalgorithmhasanextensiveapplicationoutlookindeformationmonitoring,pseudokinematicrelativepositioningandattitudedetermination,etc.

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Double-Epoch Algorithm in Rapid Positioning Using Single Frequency GPS Receivers

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Double-Epoch Algorithm in Rapid Positioning Using Single Frequency GPS Receivers

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