21 July 2010 SOFIA image motion compensation
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Proceedings Volume 7735, Ground-based and Airborne Instrumentation for Astronomy III; 77355X (2010); doi: 10.1117/12.857731
Event: SPIE Astronomical Telescopes + Instrumentation, 2010, San Diego, California, United States
Abstract
We describe a laboratory simulation of an image motion compensation system for SOFIA that uses high-speed image acquisition from the science instrument HIPO as the sensing element of the system and a Newport voice-coil actuated fast steering mirror as the correcting actuator. Performance of the system when coupled to the SOFIA secondary mirror is estimated based on the known current performance of the secondary mirror controller. The system is described and the observed performance is presented together with expectations for applicability in flight with SOFIA.
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Edward Dunham, Peter Collins, Andreas Reinacher, Ulrich Lampater, "SOFIA image motion compensation", Proc. SPIE 7735, Ground-based and Airborne Instrumentation for Astronomy III, 77355X (21 July 2010); doi: 10.1117/12.857731; https://doi.org/10.1117/12.857731
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KEYWORDS
Mirrors

Digital signal processing

Charge-coupled devices

Shape memory alloys

Spherical lenses

Stars

Control systems

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