NDLI: Improving the speed of CORS Network RTK ambiguity resolution

Content Provider	IEEE Xplore Digital Library
Author	Odijk, D. Teunissen, P.J.G.
Copyright Year	2010
Description	Author affiliation: GNSS Research Centre, Curtin University of Technology, Perth, Australia (Odijk, D.; Teunissen, P.J.G.)
Abstract	Carrier-phase ambiguity resolution between CORS Network RTK reference stations is hampered because of the presence of differential ionospheric delays. As a consequence, after a (power) failure or when a new satellite rises above the cut-off elevation, the float ambiguity solution needs to converge before the integer ambiguities can be reliably estimated. These convergence times can be up to tens of minutes, depending on the distance between the CORS stations and the ionospheric conditions. In this paper we propose a processing strategy to improve the speed of CORS Network RTK ambiguity resolution based on current dual-frequency GPS. This strategy suggests to use the ionosphere-weighted model, incorporating the known CORS station positions and a priori information on the ionospheric delays, in combination with the LAMBDA method and Fixed Failure-rate Ratio Test.
Starting Page	79
Ending Page	84
File Size	818448
Page Count	6
File Format	PDF
ISBN	9781424450367
ISSN	21533598
DOI	10.1109/PLANS.2010.5507203
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-05-04
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Satellite navigation systems Space technology Delay estimation Global Positioning System Testing Australia Convergence Satellite ground stations Space stations Kinematics convergence time GNSS CORS Network RTK Ambiguity Resolution LAMBDA method Fixed Failure-rate Ratio Test
Content Type	Text
Resource Type	Article

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