Development of a GPS-Aided Motion Measurement, Pointing and Stabilization System for a Synthetic Aperture Radar

John R. Fellerhoff and Stewart M. Kohler

Abstract:	An advanced Synthetic Aperture Radar Motion Compen- sation System has been developed by Sandia National Laboratories (SNL). The system includes a miniaturized high accuracy ring laser gyro inertial measurement unit, a three axis gimbal pointing and stabilization assembly, a differential Global Positioning System (GPS) navigation aiding system, and a pilot guidance system. The system provides several improvements over previous SNL motion compensation systems and is capable of antenna stabiliza- tion to less than 0.01 degrees RMS and absolute position measurement to less than 5.0 meters RMS. These accura- cies have been demonstrated in recent flight testing aboard a DHC-6-300 “Twin Otter” aircraft.
Published in:	Proceedings of the 48th Annual Meeting of The Institute of Navigation (1992) June 29 - 1, 1992 ANA Westin Hotel Dayton, OH
Pages:	291 - 296
Cite this article:	Fellerhoff, John R., Kohler, Stewart M., "Development of a GPS-Aided Motion Measurement, Pointing and Stabilization System for a Synthetic Aperture Radar," Proceedings of the 48th Annual Meeting of The Institute of Navigation (1992), Dayton, OH, June 1992, pp. 291-296.
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