NDLI: Development of a new data link for the GPS range system

Content Provider	IEEE Xplore Digital Library
Author	Quick Jr., R.F. Gilhousen, K.S. Birnbaum, M. Blanda, J.
Copyright Year	1990
Description	Author affiliation: Qualcomm Inc., San Diego, CA, USA (Quick, R.F., Jr.; Gilhousen, K.S.)
Abstract	The GPS (Global Positioning System) range data link is being developed for the primary purpose of supporting GPS position data collection and processing. The authors discuss the data-link message capacity required to support the generation and downlinking of GPS navigation solutions, using several range differential methods. They also discuss data link networking, with emphasis on the features required to provide high-reliability message transmission while downlinking data from highly dynamic aircraft. Support of GPS navigation in the test and training range environment requires the uplinking of receiver control messages and (for some solution methods) differential correction data. Downlink data include unprocessed receiver data and/or navigation solutions, plus receiver status data. The data link provides a nominal throughput of 200000 b/s, the greatest part being used for downlink data. To accommodate the largest GPS message blocks planned, data are transmitted in 736-b packets. Packet transmission is governed by a time-division multiple-access protocol, using 330 packet slots per second, of which approximately 280 are available for GPS data uplink and downlink. Integration of the data link into range data processing and control facilities is discussed, along with data link features allowing cooperative interoperation among adjacent ranges.
Starting Page	303
Ending Page	310
File Size	669404
Page Count	8
File Format	PDF
DOI	10.1109/PLANS.1990.66192
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1990-03-20
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Global Positioning System Electronic equipment testing Downlink System testing Aircraft navigation Instruments Data engineering Industrial electronics Defense industry Position measurement
Content Type	Text
Resource Type	Article

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