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Proceedings Paper

Control system for the Terrestrial Planet Finder interferometer
Author(s): Nelson Pedreiro; Thomas L. Trankle; Domenick J. Tenerelli
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Paper Abstract

The control system architecture and vibration mitigation approach for a Terrestrial Planet Finder (TPF) mission based on structurally connected interferometers are defined. The spacecraft configurations investigated and associated control and operational requirements are presented. Disturbance sources are identified and their relevance assessed. Results of dynamics analysis are presented, as well as a description of the dynamic models and simulations used to predict on-orbit performance. An assessment of the maturity of the technologies for control and vibration mitigation is provided. Analysis results indicate that pointing and path-length control requirements for a TPF mission based on structurally connected interferometers with baselines from 9 to 80 meters can be achieved using a conventional spacecraft attitude control system combined with active pointing and path-length control and a vibration mitigation approach that does not rely on structural damping.

Paper Details

Date Published: 26 February 2003
PDF: 12 pages
Proc. SPIE 4852, Interferometry in Space, (26 February 2003); doi: 10.1117/12.460859
Show Author Affiliations
Nelson Pedreiro, Lockheed Martin Advanced Technology Ctr. (United States)
Thomas L. Trankle, Lockheed Martin Advanced Technology Ctr. (United States)
Domenick J. Tenerelli, Lockheed Martin Missiles and Space (United States)

Published in SPIE Proceedings Vol. 4852:
Interferometry in Space
Michael Shao, Editor(s)

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