Accurate Tracking of High Dynamic Vehicles With Translated GPS

Kenneth M. Blankshain

Abstract:	The translated Gbbal Positioning System (GPS) concept involves the tracking of vehicles that have been instrumented to retransmit composite frequency translated GPS satellite signals to a ground station translator processing system (TPS). Flight tests have proven this concept to be an effective technique for time and space-position information ITSPI) tracking of high dynamic aerospace vehicles. As performance requirements exact increasing demands to track extremely high dynamic vehicles with even greater accuracy, new tracking and measurement processing techniques must be employed to meet the challenge. This paper describes a technique used by the TPS to accomplish very accurate high dynamic tracking: Automatic frequency control (AFC) and fast Fourier transform (FFI') process·es are combined to track 100g acceleration and 100 g/s jerk with 1-sigma velocity measurement error less than 1 foot per second. The concept, implementation, and simulation results of this technique are presented.
Published in:	Proceedings of the International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1988) September 19 - 23, 1988 The Broadmoor Hotel Colorado Spring, CO
Pages:	237 - 242
Cite this article:	Blankshain, Kenneth M., "Accurate Tracking of High Dynamic Vehicles With Translated GPS," Proceedings of the International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1988), Colorado Spring, CO, September 1988, pp. 237-242.
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