H-764GU EGI: Upgrade Path for GATM and CNS/ATM Interoperability

Joe Elchynski and Brian E. Fly

Abstract:	The H-764G Embedded GPS/INS (EGI) has been an enormously successful product with over 70 different s/w adaptations (or missionizations) currently flying and more missionizations currently under development. When the H-764G was first introduced in 1994, one important design feature was the availability of spare card slots that could be populated with additional functionality as technology advanced or as new requirements were placed on the host platform. That forethought has now borne fruit with the impending changes to both the Military and the civil airspace environment. Now, many DoD and industry leaders are in the throes of determining how their current military systems will evolve to allow operation within the Communication Navigation Surveillance / Air Traffic Management (CNS/ATM) airspace mandates that are currently being levied. Key elements of the CNS/ATM requirements are performance and safety. CNS/ATM will eventually result in an environment the FAA has termed "free flight". Free flight requires a shift in Air Traffic Control (ATC) philosophy, from control to management. Free flight creates a homogenous airspace that will ultimately allow aircraft operators to select user preferred flight plans saving time, money, and improving airspace use efficiency. The reality is that the environment is dramatically changing for both the aircraft operators and the air traffic service providers. No operator is immune to these changes and those who desire to continue operating in civil airspace will be required to be compliant in terms of new procedures and supporting avionics. In many platforms, these new requirements/upgrades mean additional avionics equipment in already over-crowded equipment bays and cockpits. The spare card slots in the H-764G unit provide an opportunity for these platforms to adhere to CNS/ATM and Global Air Traffic Management (GATM) requirements without increasing LRUs and in many cases actually reducing overall space claims for these technologies. This paper will discuss Honeywell's technical upgrade path and the new capabilities of the H-764GU (U for Upgrade) that will satisfy these requirements. CNS/ATM Features to be incorporated in the H-764GU include the addition of Multi-Mode Receiver (MMR) functionality consisting of VOR, ILS, Marker Beacon, and LAAS capabilities, along with Navigation Management capabilities with associated Integrity Monitoring for RNP area navigation. Military features include a GPS receiver upgrade to address over-the-air- keying, along with Joint Precision Approach & Landing System (JPALS) capabilities.
Published in:	Proceedings of the 2002 National Technical Meeting of The Institute of Navigation January 28 - 30, 2002 The Catamaran Resort Hotel San Diego, CA
Pages:	322 - 329
Cite this article:	Elchynski, Joe, Fly, Brian E., "H-764GU EGI: Upgrade Path for GATM and CNS/ATM Interoperability," Proceedings of the 2002 National Technical Meeting of The Institute of Navigation, San Diego, CA, January 2002, pp. 322-329.
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