Development of Embedded Modules for GPS Aided Navigation

Scott R. Sievers and K. Larry Nelson

Abstract:	The Collins Avionics & Communications Division’s produced DOD Miniature Airborne GPS Receiver (MAGR) sets the standard for stand-alone GPS performance. This receiver establishes the lower limits of what can be expected in terms of size, weight, and integration and procurement costs for stand alone GPS receivers. Integrators are requesting more efficient packaging options for applications where traditional GPS integrations are not acceptable. The straight forward solution to these size, weight, and cost problems is to reduce the number of LRUs in the aircraft. Embedding the GPS receiver directly within an existing navigation assembly accomplishes this task. The GEM module is a highly capable GPS receiver in a single pitch modified SEM-E form factor ready for integration in the host navigation system. The avionics industry has for some time recognized the inherent advantages found in the integration of systems with short term accuracy with GPS to provide the long term accuracy and stability that is required for today’s navigation systems. The benefit that each system realizes through the aiding data provided by the other has been previously established, and will not be the subject of this paper. This paper outlines the GEM program currently underway at Rockwell International’s Collins Avionics & Communications Division. GEM was conceived as a three Phase program yielding three separate and marketable products. Major design features include low price, interface commonality, small size, and compliance with military requirements. They are embedded versions of Collins stand-alone receivers.
Published in:	Proceedings of the 6th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1993) September 22 - 24, 1993 Salt Palace Convention Center Salt Lake City, UT
Pages:	1425 - 1432
Cite this article:	Sievers, Scott R., Nelson, K. Larry, "Development of Embedded Modules for GPS Aided Navigation," Proceedings of the 6th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1993), Salt Lake City, UT, September 1993, pp. 1425-1432.
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