Phase Center Calibration and Multipath Test Results of a Digital Beam-Steered Antenna Array

K. Stolk, A. Brown

Abstract:	For precision GPS applications, such as GPS reference sites, antenna calibration is needed to characterize and compensate for carrier phase distortions caused by the antenna. This is generally attributed to two sources: phase center motion dependent on the satellite direction, and phase offsets caused by local multipath. The ability to reduce these error sources is critical for high accuracy kinematic GPS applications. In this paper a digital beam-steered antenna array is described that has the capability to perform built-in calibration and characterization of carrier phase errors. The calibration process and test results showing the kinematic GPS performance possible with this receiver are described in this paper.
Published in:	Proceedings of the 16th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS/GNSS 2003) September 9 - 12, 2003 Oregon Convention Center Portland, OR
Pages:	1889 - 1897
Cite this article:	Stolk, K., Brown, A., "Phase Center Calibration and Multipath Test Results of a Digital Beam-Steered Antenna Array," Proceedings of the 16th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS/GNSS 2003), Portland, OR, September 2003, pp. 1889-1897.
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