Dissertation/Thesis Abstract

Analysis of square-root Kalman filters for angles-only orbital navigation and the effects of sensor accuracy on state observability
by Schmidt, Jason Knudsen, M.S., Utah State University, 2010, 165; 1476559
Abstract (Summary)

Angles-only navigation is simple, robust, and well proven in many applications. However, it is sometimes ill-conditioned for orbital rendezvous and proximity operations because, without a direct range measurement, the distance to approaching satellites must be estimated by firing thrusters and observing the change in the target’s bearing. Nevertheless, the simplicity of angles-only navigation gives it great appeal. The viability of this technique for relative navigation is examined by building a high-fidelity simulation and evaluating the sensitivity of the system to sensor errors. The relative performances of square-root filtering methods, including Potter, Carlson, and UD factorization filters, are compared to the conventional and Joseph formulations. Filter performance is evaluated during closed-loop “station keeping” operations in simulation.

Indexing (document details)
Advisor: Geller, David K.
Commitee: Swenson, Charles M., Whitmore, Stephen A.
School: Utah State University
Department: Mechanical and Aerospace
School Location: United States -- Utah
Source: MAI 48/05M, Masters Abstracts International
Subjects: Aerospace engineering
Keywords: Angles-only, Bearings-only, Kalman filters, Orbital rendezvous, Proximity operations, Relative navigation
Publication Number: 1476559
ISBN: 978-1-124-01153-0
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