A Discussion of Time Synch & Lever Arm Issues Related to a High Accuracy Integration of Attitude Determining GPS with an INS (As Applied to a Mobile Gravity Vector Surveying System)

Ian Humphrey, Todd Kawakami, David Gleason

Abstract:	The integration of multiple sensors to estimate the gravity deflection vectors demands extremely high precision. This requires high accuracy sensors and a very tightly integrated system. The practical implications of integrating a high quality INS with an attitude determining GPS receiver in a dynamic environment are discussed. The integration has taken place as part of the development of a Mobile Gravity Vector Surveying System undertaken by the USAF Phillips Laboratory. Due to the high accuracy required by this application great care was taken to minimize the implementation errors due to time delays, lever arms, etc. The sensitivity to these errors and the methods used to minimize them are discussed in detail.
Published in:	Proceedings of the 52nd Annual Meeting of The Institute of Navigation (1996) June 19 - 21, 1996 Royal Sonesta Hotel Cambridge, MA
Pages:	753 - 758
Cite this article:	Humphrey, Ian, Kawakami, Todd, Gleason, David, "A Discussion of Time Synch & Lever Arm Issues Related to a High Accuracy Integration of Attitude Determining GPS with an INS (As Applied to a Mobile Gravity Vector Surveying System)," Proceedings of the 52nd Annual Meeting of The Institute of Navigation (1996), Cambridge, MA, June 1996, pp. 753-758.
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