Ardaens, Jean-Sébastien and Gaias, Gabriella (2018) Flight demonstration of spaceborne real-time angles-only navigation to a noncooperative target in low earth orbit. Acta Astronautica. Elsevier. DOI: 10.1016/j.actaastro.2018.01.044 ISSN 0094-5765 (In Press)
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Official URL: http://www.sciencedirect.com/science/article/pii/S0094576517313243
Abstract
The paper describes the onboard vision-based navigation software employed during the DLR's AVANTI experiment and presents its flight performance. The navigation task relies on a dedicated target detection module in charge of extracting the line-of-sight observations from the images taken by a monocular camera. The recognition of the target is based on the kinematic identification of its trajectory over a sequence of images. Subsequently, the resulting angles-only measurements are validated dynamically and processed by an Extended Kalman Filter to derive in real-time the relative state estimate. A computationally light implementation of the filter is achieved by the use of an analytical relative motion model. Two autonomous rendezvous to a noncooperative object have been performed in orbit, first from 13 km to 1 km separation, then from 3 km to 50 m. Despite the poor visibility conditions and the strong orbit perturbations encountered at low altitude, the filter was able to supply the onboard guidance and control algorithms with accurate and reliable relative state estimation, enabling thus a safe and smooth approach.
Item URL in elib: | https://elib.dlr.de/120682/ | |||||||||
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Document Type: | Article | |||||||||
Title: | Flight demonstration of spaceborne real-time angles-only navigation to a noncooperative target in low earth orbit | |||||||||
Authors: |
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Date: | 2018 | |||||||||
Journal or Publication Title: | Acta Astronautica | |||||||||
Refereed publication: | Yes | |||||||||
Open Access: | No | |||||||||
Gold Open Access: | No | |||||||||
In SCOPUS: | Yes | |||||||||
In ISI Web of Science: | Yes | |||||||||
DOI : | 10.1016/j.actaastro.2018.01.044 | |||||||||
Publisher: | Elsevier | |||||||||
ISSN: | 0094-5765 | |||||||||
Status: | In Press | |||||||||
Keywords: | Noncooperative rendezvous, Angles-only navigation, Autonomy, Formation-flying, Flight demonstration | |||||||||
HGF - Research field: | Aeronautics, Space and Transport | |||||||||
HGF - Program: | Space | |||||||||
HGF - Program Themes: | Space Technology | |||||||||
DLR - Research area: | Raumfahrt | |||||||||
DLR - Program: | R SY - Technik für Raumfahrtsysteme | |||||||||
DLR - Research theme (Project): | R - Vorhaben Infrastruktur und Unterstützung für Raumflugbetrieb | |||||||||
Location: | Oberpfaffenhofen | |||||||||
Institutes and Institutions: | Space Operations and Astronaut Training | |||||||||
Deposited By: | Ardaens, Jean-Sebastien | |||||||||
Deposited On: | 06 Jul 2018 16:25 | |||||||||
Last Modified: | 06 Jul 2018 16:25 |
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