Development of an Expendable Real-Time GPS-Based Time-Space-Position Information (TSPI) System Using COTS Hardware

J.A. Rogers, M.L. Boggs, B.D. Scott, B.M. Hoem

Abstract:	The GPS/INS Branch of the Naval Air Warfare Center Weapons Division (China Lake, CA) was tasked to develop and field a low-cost Time-Space-Position Information (TSPI) system for ground targets using commercial off the shelf (COTS) technology. The resulting portable system, developed and fielded in 6 weeks, provides real-time TSPI solutions compatible with RCCS II Range Front End format for multiple moving targets. The system telemeters its uncorrected position via a FCC part 15 compliant spread spectrum datalink to a ground station. The ground station corrects the position data via a reverse differential technique and broadcasts TSPI data in standard RCCS II format to NAWCWD´s Range Control Center. Development and replacement costs were minimized through extensive use of COTS technology, resulting in a solution that is affordable enough to be destroyed during weapons testing at NAWCWD´s ranges. This paper begins with an overview of the requirements that drove development of this TSPI system. A discussion of operational concerns and experiences with this system, including operation over long differential baselines, follows. The paper concludes with an overview of the system-level accuracy study that was performed on data generated by this TSPI system.
Published in:	Proceedings of the 59th Annual Meeting of The Institute of Navigation and CIGTF 22nd Guidance Test Symposium (2003) June 23 - 25, 2003 Hyatt Regency Hotel Albuquerque, NM
Pages:	444 - 448
Cite this article:	Rogers, J.A., Boggs, M.L., Scott, B.D., Hoem, B.M., "Development of an Expendable Real-Time GPS-Based Time-Space-Position Information (TSPI) System Using COTS Hardware," Proceedings of the 59th Annual Meeting of The Institute of Navigation and CIGTF 22nd Guidance Test Symposium (2003), Albuquerque, NM, June 2003, pp. 444-448.
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