Improvement of Vision-Based Estimation Using Multiple Vector Observations
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.
D. Lee and H. Pernicka, "Improvement of Vision-Based Estimation Using Multiple Vector Observations," Advances in the Astronautical Sciences, American Institute of Aeronautics and Astronautics (AIAA), Jan 2009.
19th AAS/AIAA Space Flight Mechanics Meeting
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
Article - Conference proceedings
© 2009 American Institute of Aeronautics and Astronautics (AIAA), All rights reserved.
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