Digital Technolgy Applied to Airborne Receivers

Jean Paul Lacroix

Abstract:	Digital techniques and technologies become widely used for GPS equipment, and present considerable advantages for airborne applications : - equipment size, weight and power requirement reduction - high performance - increased reliability - reduced cost. These techniques have been applied to the design of SEXTANT Avionique's family of GPS sensors for aircraft applications, which are based on : - Ga As MMICs for RF down conversion - CMOS ASICs for multichannel signal processing - Standard processors for navigation processing. The main result is the development of single-board 5 to lo-channel core receivers for both C/A-L1 and P-Ll/LE-PPS versions, which may be used as miniaturized GPS sensors, as well as modules inside an Inertial Reference Unit or another host computer. This paper described how these techniques and technologies are implemented, the receiver architectures selected, and the characteristics, performances and in-plant and in-flight test results of the receivers developped.
Published in:	Proceedings of the 3rd International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1990) September 19 - 21, 1990 The Broadmoor Hotel Colorado Spring, CO
Pages:	41 - 47
Cite this article:	Lacroix, Jean Paul, "Digital Technolgy Applied to Airborne Receivers," Proceedings of the 3rd International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1990), Colorado Spring, CO, September 1990, pp. 41-47.
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