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Proceedings Paper

CCD-based optical tracking loop design trades
Author(s): Dana M. Southwood
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Paper Abstract

The design of a CCD-based pointing, acquisition, and tracking (PAT) system is discussed together and with the design of a CCD-based tracking loop architecture for a cost-effective PAT system which would be applicable to the full spectrum of lasercom link possibilities. Four separate CCD systems are considered, with sample rates of 30 Hz, 300 Hz, 1 kHz, and 10 kHz; in each case, the CCD architecture is designed to meet a set of performance goals in the presence of host-induced disturbance environments representative of the disturbance environments that might be expected on orbit due to typical spaceborne actuators and vehicle dynamics. The paper describes the PAT base architecture, the performance goals of the CCD, the component analysis models, and the rejection loop designs using the different CCD systems. The results demonstrate that it is possible to increase the system efficiency and decrease its complexity by using a faster sampling CCD rather than relying on inertial measurements to meet tight pointing requirements.

Paper Details

Date Published: 9 June 1992
PDF: 14 pages
Proc. SPIE 1635, Free-Space Laser Communication Technologies IV, (9 June 1992); doi: 10.1117/12.59274
Show Author Affiliations
Dana M. Southwood, TRW, Inc. (United States)

Published in SPIE Proceedings Vol. 1635:
Free-Space Laser Communication Technologies IV
David L. Begley; Bernard D. Seery, Editor(s)

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