The paper investigates different solutions for ionospheric delay handling in high accuracy long baseline relative positioning by Carrier-Phase Differential GPS (CDGPS). Standard literature approaches are reviewed and the relevant limitations are discussed. Hence, a completely ionosphere-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 solution.
Ionospheric delay handling for relative navigation by carrier-phase differential GPS / Renga, Alfredo; U., Tancredi; Grassi, Michele. - In: INTERNATIONAL JOURNAL OF AEROSPACE ENGINEERING. - ISSN 1687-5966. - 2015:(2015), pp. 1-8. [10.1155/2015/570382]
Ionospheric delay handling for relative navigation by carrier-phase differential GPS
RENGA, ALFREDO;GRASSI, MICHELE
2015
Abstract
The paper investigates different solutions for ionospheric delay handling in high accuracy long baseline relative positioning by Carrier-Phase Differential GPS (CDGPS). Standard literature approaches are reviewed and the relevant limitations are discussed. Hence, a completely ionosphere-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 solution.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
