Inertial Instrument Error Characterization

James L. Farrell

Abstract:	"Dependence of inertial instrument errors on forces and rotations acting on a strapdown IMU is well-known. With the same motions affecting many error sources it is obviously inaccurate to ignore the interactions Ð although that is likewise well known, the implications need to be confronted industry-wide. This will improve both compensation of degradations and specifications for amounts remaining after imperfect calibration. Willingness to address ramifications of accelerometer and gyro errors from rotations and vibrations has, thus far, been overridden by other priorities. With MEMS sensors and with increased attention to random errors, those priorities are now elevated. Motion-independent error characteristics (e.g., turn-on to turn-on variations) are of course added to the total. "
Published in:	Proceedings of the 61st Annual Meeting of The Institute of Navigation (2005) June 27 - 29, 2005 Royal Sonesta Hotel Cambridge, MA
Pages:	1020 - 1025
Cite this article:	Updated citation: Published in NAVIGATION: Journal of the Institute of Navigation
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