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Proceedings Paper

Telescope multi-field wavefront control with a Kalman filter
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Paper Abstract

An effective multi-field wavefront control (WFC) approach is demonstrated for an actuated, segmented space telescope using wavefront measurements at the exit pupil, and the optical and computational implications of this approach are discussed. The integration of a Kalman Filter as an optical state estimator into the wavefront control process to further improve the robustness of the optical alignment of the telescope will also be discussed. Through a comparison of WFC performances between on-orbit and ground-test optical system configurations, the connection (and a possible disconnection) between WFC and optical system alignment under these circumstances are analyzed. Our MACOS-based [2] computer simulation results will be presented and discussed.

Paper Details

Date Published: 12 July 2008
PDF: 13 pages
Proc. SPIE 7010, Space Telescopes and Instrumentation 2008: Optical, Infrared, and Millimeter, 701043 (12 July 2008); doi: 10.1117/12.788198
Show Author Affiliations
John Z. Lou, Jet Propulsion Lab. (United States)
David Redding, Jet Propulsion Lab. (United States)
Norbert Sigrist, Jet Propulsion Lab. (United States)
Scott Basigner, Jet Propulsion Lab. (United States)

Published in SPIE Proceedings Vol. 7010:
Space Telescopes and Instrumentation 2008: Optical, Infrared, and Millimeter
Jacobus M. Oschmann Jr.; Mattheus W. M. de Graauw; Howard A. MacEwen, Editor(s)

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