Development of a Real-Time Kinematic GPS System: System Design, Performance and Results

Hubiano Lan and M. Elizabeth Cannon

Abstract:	A real-time kinematic system has been developed which achieves centimeter accuracies in real-time at a 1 Hz update rate. Based on a double difference floating ambiguity algorithm and a fast integer ambiguity search filter (FASF), the system resolves integer ambiguities when possible, otherwise uses the floating ambiguity option to achieve decimeter accuracies. The system integrates two L 1 C/A code NovAtel GPSCards (10 or 12 channels), two portable computers and a set of radio data links. Carrier phase and pseudorange corrections defined by RTCM SC- 104 types 20 and 2 1 are used to improve the efficiency of data communication. Performance of this system was tested by static and kinematic tests. Results of these tests are shown and the limits of the system are discussed.
Published in:	Proceedings of the 1996 National Technical Meeting of The Institute of Navigation January 22 - 24, 1996 Loews Santa Monica Hotel Santa Monica, CA
Pages:	605 - 613
Cite this article:	Lan, Hubiano, Cannon, M. Elizabeth, "Development of a Real-Time Kinematic GPS System: System Design, Performance and Results," Proceedings of the 1996 National Technical Meeting of The Institute of Navigation, Santa Monica, CA, January 1996, pp. 605-613.
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