lntegration of a Fibre Optical Gyro Attitude and Heading Reference System with Differential GPS

Manfred Baumker, Manfred Hullenkremer and Axel Lehmann

Abstract:	LITEF produces the FOG-AHRS LCR-92 (with bubble levels). This system is presently the only AHRS in the world with Fibre Optical Gyros, and is certified by the German authorities and the FAA. The next generation FOG-AHRS with micromechanic accelerometers is under development. As an interim solution an AHRS using conventional accelerometers has been built for integration with (D)GPS/ GLONASS. Presently, this prototype system uses an external processor to perform the full AHRWDGPS calculations. Further studies are focussed on different integration approaches of the DGPS measurements: the cascaded and integrated Kalman filter approach. The next step is to implement the algorithms we are evaluating into a second processor of the AHRS. The paper will give an overview of the project and it’s present status, including van test results of the prototype system using a cascaded and an integrated Kalman filter approach.
Published in:	Proceedings of the 8th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1995) September 12 - 15, 1995 Palm Springs, CA
Pages:	1847 - 1855
Cite this article:	Baumker, Manfred, Hullenkremer, Manfred, Lehmann, Axel, "lntegration of a Fibre Optical Gyro Attitude and Heading Reference System with Differential GPS," Proceedings of the 8th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1995), Palm Springs, CA, September 1995, pp. 1847-1855.
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