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Proceedings Paper

Multi Mirror Beam Control
Author(s): J. J. Rodden
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Paper Abstract

The line of sight for optical beams from a spacecraft for pointing and tracking can be controlled in several ways. The whole optical system can be pointed to the object of interest, such as for the Hubble Space Telescope. The optical elements, such as a telescope, can be gimbal mounted and maneuvered with respect to an independently controlled spacecraft base, such as the European Space Agency Instrument Support Assembly. A third method maneuvers mirrors so as to direct the line of sight through spacecraft mounted telescope optics. This paper addresses the last alternative, Extended response agility can be accommodated with multiple mirrors. The field of view can be established with a relatively slow gimbal mounted mirror with a considerable angular range to be augmented in the optical path with a relatively fast response angular mirror with a limited angular range. The use of the error signal from the slow mirror to command the fast mirror extends the effective bandwidth of the system.

Paper Details

Date Published: 26 September 1989
PDF: 8 pages
Proc. SPIE 1111, Acquisition, Tracking, and Pointing III, (26 September 1989); doi: 10.1117/12.977994
Show Author Affiliations
J. J. Rodden, Lockheed Missiles & Space Company, Inc. (United States)

Published in SPIE Proceedings Vol. 1111:
Acquisition, Tracking, and Pointing III
Sankaran Gowrinathan, Editor(s)

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