New Applications of Measurement Redundancy in High Performance Relative Navigation Systems for Aviation

S. Khanafseh, B. Kempny, B. Pervan

Abstract:	This paper describes new methods for using measurement redundancy for navigation in two closely related aviation applications: Sea-Based Joint Precision Approach and Landing System (SB-JPALS) and Autonomous Airborne Refueling (AAR). Because of the mobility and physical sensitivity of the reference station (ship or tanker) in each of these applications, higher levels of accuracy, integrity, continuity and availability are required than for similar precision approach applications at land-based airfields. In this paper, two primary sources of redundancy are considered: multiple antenna/receiver configurations for both SB-JPALS and ARR and an additional inter-vehicle ranging measurement for AAR only. Different methods for using these redundant measurements can be designed to enhance navigation accuracy, integrity and continuity. In this paper, we analyze and quantify the tradeoffs for several unique approaches in the implementation of these redundant measurements in the fault free case. In addition, we provide recommendations for the best-suited method for each application.
Published in:	Proceedings of the 19th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2006) September 26 - 29, 2006 Fort Worth Convention Center Fort Worth, TX
Pages:	3024 - 3034
Cite this article:	Khanafseh, S., Kempny, B., Pervan, B., "New Applications of Measurement Redundancy in High Performance Relative Navigation Systems for Aviation," Proceedings of the 19th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2006), Fort Worth, TX, September 2006, pp. 3024-3034.
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