Opportune acquisition and tracking time for the fast-moving targets in a ground-based telescope

Juan Chen; Jianli Wang; Tao Chen

doi:10.1117/12.542974

28 September 2004 Opportune acquisition and tracking time for the fast-moving targets in a ground-based telescope

Juan Chen, Jianli Wang, Tao Chen

Proceedings Volume 5489, Ground-based Telescopes; (2004) https://doi.org/10.1117/12.542974
Event: SPIE Astronomical Telescopes + Instrumentation, 2004, Glasgow, United Kingdom

Abstract

Acquisition is defined as identification for a fixed target in the related field of sight (FOS), while tracking means the sway of the telescope's axis of sight (AOS). The automatic acquisition and tracking is a process in which the operating way of the telescope should be switched from guiding to automatic tracking. There are some kinds of method to improve the acquisition and tracking ability for fast moving targets: to extend the acquisition and tracking FOS with memory and storage information of the sensor system; the multimode control to improve the dynamic property of the servo system; to choose an opportune time for acquisition and tracking; to select the control regulator parameter in every working states. If the processor of the CCD sensor can temporarily remember and save the information of the target before it moves out of the FOS, correspondingly, the FOS may be extended. The data forecast technology is used to store the target information. The automatic interception experiments are carried out to verify the control strategy.

Citation Download Citation

Juan Chen, Jianli Wang, and Tao Chen "Opportune acquisition and tracking time for the fast-moving targets in a ground-based telescope", Proc. SPIE 5489, Ground-based Telescopes, (28 September 2004); https://doi.org/10.1117/12.542974

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KEYWORDS

Telescopes

Target acquisition

Control systems

Automatic tracking

Sensors

CCD image sensors

Adaptive optics

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