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Proceedings Paper

Rapid star-pattern identification
Author(s): Brendan Quine; Hugh F. Durrant-Whyte
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Paper Abstract

An algorithm for the rapid identification of star patterns is presented. The paradigm utilizes a novel star selection technique and a new binary tree- search technique to identify star configurations from large catalogues in a minimal time with low data storage requirements. Performance claims are supported by test data and identification results from a ground-based experimental star camera, the system consistently demonstrating a capability to identify numbers of stars in a single star camera image. Features include a search time scaling to the logarithm of the number of stars in the identification set, a reduced dependence on star magnitude data, and a method of accounting for camera measurement inaccuracy. The method is suitable for in-space application and offers the possibility of complete sky identification coverage using high accuracy star cameras. The approach produces a reliable, orientation independent star identification faster than conventional serial techniques and adaptable to many types of mission and application.

Paper Details

Date Published: 7 June 1996
PDF: 10 pages
Proc. SPIE 2739, Acquisition, Tracking, and Pointing X, (7 June 1996); doi: 10.1117/12.241931
Show Author Affiliations
Brendan Quine, Univ. of Oxford and Matra Marconi Space Ltd. (United Kingdom)
Hugh F. Durrant-Whyte, Univ. of Sydney (Australia)

Published in SPIE Proceedings Vol. 2739:
Acquisition, Tracking, and Pointing X
Michael K. Masten; Larry A. Stockum, Editor(s)

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