Kinematic On-The-Fly GPS Positioning Relative to a Moving Reference

Bruce Hermann, Alan Evans, Christopher Law, Benjamin Remondi

Abstract:	Dr. Remondi’s On-The-Fly (OTF) positioning algorithm is used in a post-processing mode to precisely determine the vector between antennas on the arms of a rotating platform and on two passing vehicles. The algorithm is used in hoth a standard differential form, between a static and a moving antenna, and in a modified relative form, between two moving antennas. The first test described employs a turntable on which one or two antennas are mounted. The antennas are in motion with respect to a fixed reference site. The angular velocity of the turntable is increased in steps from 0 to 10 and then to 30 deglsec. Independent truth data were obtained by a static survey of the instrument. In a second test, the antennas were mounted on car roofs. The two vehicles performed drive-hys that were documented by a video camera mounted on one of the cars. The video frames were time tagged with GPS and the distance between vehicles was obtained by measurements of a scale attached to the second vehicle and visible in each video frame at the closest approach. Analysis of the data with fixed and moving reference sites is presented.
Published in:	Proceedings of the 7th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1994) September 20 - 23, 1994 Salt Palace Convention Center Salt Lake City, UT
Pages:	1499 - 1507
Cite this article:	Updated citation: Published in NAVIGATION: Journal of the Institute of Navigation
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