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Proceedings Paper

Precision beam pointing for laser communication system using a CCD-based tracker
Author(s): Chien-Chung Chen; Homayoon Ansari; James R. Lesh
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Paper Abstract

Spatial acquisition and precision beam pointing functions are critical to spaceborne laser communication systems. A recent system study indicated that a single high bandwidth CCD detector can be used to perform both spatial acquisition and tracking functions. Compared to previous lasercom hardware design, the array tracking concept offers reduced system complexity by reducing the number of optical elements in the design. Specifically, the design requires only one detector and one beam steering mechanism. It also provides means to optically close the point-ahead control loop. The technology required for high bandwidth array tracking was examined and shown to be consistent with current state of the art. It is believed that the single detector design can lead to a significantly reduced system complexity and a lower system cost.

Paper Details

Date Published: 23 September 1993
PDF: 10 pages
Proc. SPIE 1949, Space Guidance, Control, and Tracking, (23 September 1993); doi: 10.1117/12.157075
Show Author Affiliations
Chien-Chung Chen, Jet Propulsion Lab. (United States)
Homayoon Ansari, Jet Propulsion Lab. (United States)
James R. Lesh, Jet Propulsion Lab. (United States)


Published in SPIE Proceedings Vol. 1949:
Space Guidance, Control, and Tracking
George E. Sevaston; Richard H. Stanton, Editor(s)

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