TR2021-148
Abort-safe spacecraft rendezvous under stochastic actuation and navigation uncertainty
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- "Abort-safe spacecraft rendezvous under stochastic actuation and navigation uncertainty", IEEE Annual Conference on Decision and Control (CDC), DOI: 10.1109/CDC45484.2021.9683322, December 2021, pp. 6620-6625.BibTeX TR2021-148 PDF
- @inproceedings{Vinod2021dec,
- author = {Vinod, Abraham P. and Weiss, Avishai and Di Cairano, Stefano},
- title = {Abort-safe spacecraft rendezvous under stochastic actuation and navigation uncertainty},
- booktitle = {IEEE Annual Conference on Decision and Control (CDC)},
- year = 2021,
- pages = {6620--6625},
- month = dec,
- doi = {10.1109/CDC45484.2021.9683322},
- url = {https://www.merl.com/publications/TR2021-148}
- }
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- "Abort-safe spacecraft rendezvous under stochastic actuation and navigation uncertainty", IEEE Annual Conference on Decision and Control (CDC), DOI: 10.1109/CDC45484.2021.9683322, December 2021, pp. 6620-6625.
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MERL Contacts:
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Research Areas:
Abstract:
We propose a tractable approach to generate abort-safe trajectories for safe spacecraft rendezvous that guarantees safety (the spacecraft does not enter a keep-out set defined around the rendezvous target), despite process and measurement noise, and the possibility of partial propulsion failure. We use a combination of stochastic reachability, computational geometry, and optimization to synthesize a nominal rendezvous trajectory and its associated controller. The designed trajectory is such that safe recovery is also guaranteed with high likelihood in the event of a partial propulsion failure. The recovery controllers can be computed only when needed using offline pre-computation, thereby reducing the online computational effort. Numerical experiments show the efficacy of the proposed approach.