Title

Catalog-Free Angular Rate Estimation And On-Line Detection Of Resident Space Objects

Abstract

Star-tracker systems are typically limited by the angular rates at which they operate due to the tendency for stars to "streak" across the image plane. Due to this limitation, spacecraft relying primarily on feedback from a star-tracker system must either perform rate-limited maneuvers or rely on secondary sensor systems for the duration of the maneuver. Here, an algorithm is presented which makes use of streaked star images to provide angular rate measurements. Building on previous work which produced two attitude estimates from a single streaked star image, the algorithm detailed here removes the need for a star catalog and provides rate-only estimates. Additionally, it becomes possible to identify some non-star behavior with minimal additional processing. In this paper a simple star camera model is detailed, a stellar gyroscope algorithm is presented, and three fundamental indicators of non-star behavior are discussed. Simulation results are presented for multiple characteristic scenarios and the performance is quantified.

Publication Date

1-1-2014

Publication Title

Advances in the Astronautical Sciences

Volume

152

Number of Pages

1485-1499

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

Socpus ID

84940737432 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84940737432

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