Kinematic Carrier Phase GPS Positioning Aided by an Instantaneous Local Ionospheric Model Based on Multiple Base Stations Using Kriging

Y. Yi, D.A. Grejner-Brzezinska

Abstract:	In this paper, we present a sequential adjustment approach used to derive double difference ionospheric corrections, based on the network of reference receivers, simultaneously observing carrier phase and pseudorange data. Subsequently, we demonstrate the use of the Kriging technique to estimate an instantaneous local ionospheric correction for a kinematic receiver, based on the ionospheric error estimates provided by the network. The ionosphere-corrected observables are used to support double difference ambiguity resolution and GPS positioning solution of the rover. The system design, the algorithmic approach, and the performance analysis are presented. The example estimation of the local ionospheric correction model derived by Kriging is based on the GPS dataset from 10 Ohio CORS stations, collected on Dec. 9, 2002. The kinematic positioning performance is analyzed based on the instantaneous double difference ionospheric corrections interpolated from the local ionospheric model derived from CORS data.
Published in:	Proceedings of the 59th Annual Meeting of The Institute of Navigation and CIGTF 22nd Guidance Test Symposium (2003) June 23 - 25, 2003 Hyatt Regency Hotel Albuquerque, NM
Pages:	387 - 396
Cite this article:	Yi, Y., Grejner-Brzezinska, D.A., "Kinematic Carrier Phase GPS Positioning Aided by an Instantaneous Local Ionospheric Model Based on Multiple Base Stations Using Kriging," Proceedings of the 59th Annual Meeting of The Institute of Navigation and CIGTF 22nd Guidance Test Symposium (2003), Albuquerque, NM, June 2003, pp. 387-396.
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