Title

Improvement of Vision-Based Estimation Using Multiple Vector Observations

Abstract

Multiple (three or more) line-of-sight vector observations are used to improve relative attitude and position estimation performance for a pair of spacecraft preparing to rendezvous. Multiple LOS vector observations are generated by strategically arraying beacons on the chief spacecraft. An observability analysis of the six-degree-of-freedom attitude and position determination problem is used to verify the effectiveness of the beacon configurations. An extended Kalman filter is used for the state estimation. In order to evaluate simulation results, the norms of the attitude and position errors are numerically integrated over thirty minutes of the final approach rendezvous phase.

Meeting Name

19th AAS/AIAA Space Flight Mechanics Meeting

Department(s)

Mechanical and Aerospace Engineering

Keywords and Phrases

Final Approach; Line-Of-Sight; Observability Analysis; Position Determination; Position Errors; Position Estimation; Relative Attitude; Six-Degree-Of-Freedom; Vector Observations; Vision Based

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2009 American Institute of Aeronautics and Astronautics (AIAA), All rights reserved.

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