The paper investigates different solutions for handling of ionospheric delays in high accuracy long baseline relative positioning by Carrier-based Differential GPS (CDGPS). Standard literature approaches are reviewed and the relevant limitations discussed. Hence, a completely ionospheric-free approach is proposed, in which the differential ionospheric delays are cancelled out by combination of dual frequency GPS measurements. The performance of this approach is quantified over real-world spaceborne GPS data made available by the Gravity Recovery And Climate Experiment (GRACE) mission and compared to the standard solutions
Handling of ionospheric delays for Carrier Phase Differential GPS in LEO formation flying
TANCREDI, Urbano
2013-01-01
Abstract
The paper investigates different solutions for handling of ionospheric delays in high accuracy long baseline relative positioning by Carrier-based Differential GPS (CDGPS). Standard literature approaches are reviewed and the relevant limitations discussed. Hence, a completely ionospheric-free approach is proposed, in which the differential ionospheric delays are cancelled out by combination of dual frequency GPS measurements. The performance of this approach is quantified over real-world spaceborne GPS data made available by the Gravity Recovery And Climate Experiment (GRACE) mission and compared to the standard solutionsFile in questo prodotto:
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