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Proceedings Paper

Inertial reference unit design for small spacecraft
Author(s): Clifford O. Swanson; Edgar Barton
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Paper Abstract

Significant technical considerations prompted the start of an evolution, twenty years ago, from the use of the floated, rate- integrating gyro to the dynamically tuned gyro (DTG) for the precision, three-axis attitude control of spacecraft. DTG's have since then been widely applied in U.S. spacecraft. The anticipated advent of smaller, lower cost spacecraft prompted the development of a new generation, lower cost, low weight (3.6 lb/1.8 kg), moderate performance inertial reference unit (IRU) for such applications by making use of the miniature CONEX DTG. The resulting two-axis rate assembly has already been qualified and delivered to two programs. In parallel, development of a miniature, three-axis ring laser gyro has proceeded to the point where an inertial measurement unit has entered the early phase of production for a tactical missile program. Simple modification of the hardware will provide a production-based IRU or IMU design at a cost advantage for spacecraft applications.

Paper Details

Date Published: 5 July 1994
PDF: 22 pages
Proc. SPIE 2221, Acquisition, Tracking, and Pointing VIII, (5 July 1994); doi: 10.1117/12.178976
Show Author Affiliations
Clifford O. Swanson, Kearfott Guidance and Navigation Corp. (United States)
Edgar Barton, Kearfott Guidance and Navigation Corp. (United States)


Published in SPIE Proceedings Vol. 2221:
Acquisition, Tracking, and Pointing VIII
Michael K. Masten; Larry A. Stockum; Morris M. Birnbaum; George E. Sevaston, Editor(s)

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