Autonomous Scheduling of Agile Spacecraft Constellations with Delay Tolerant Networking for Reactive Imaging Article Swipe
Sreeja Nag
,
Alan S. Li
,
Vinay Ravindra
,
Marc Sánchez Net
,
Kar‐Ming Cheung
,
Rod Lammers
,
Brian P. Bledsoe
·
YOU?
·
· 2020
· Open Access
·
· DOI: https://doi.org/10.48550/arxiv.2010.09940
YOU?
·
· 2020
· Open Access
·
· DOI: https://doi.org/10.48550/arxiv.2010.09940
Small spacecraft now have precise attitude control systems available commercially, allowing them to slew in 3 degrees of freedom, and capture images within short notice. When combined with appropriate software, this agility can significantly increase response rate, revisit time and coverage. In prior work, we have demonstrated an algorithmic framework that combines orbital mechanics, attitude control and scheduling optimization to plan the time-varying, full-body orientation of agile, small spacecraft in a constellation. The proposed schedule optimization would run at the ground station autonomously, and the resultant schedules uplinked to the spacecraft for execution. The algorithm is generalizable over small steerable spacecraft, control capability, sensor specs, imaging requirements, and regions of interest. In this article, we modify the algorithm to run onboard small spacecraft, such that the constellation can make time-sensitive decisions to slew and capture images autonomously, without ground control. We have developed a communication module based on Delay/Disruption Tolerant Networking (DTN) for onboard data management and routing among the satellites, which will work in conjunction with the other modules to optimize the schedule of agile communication and steering. We then apply this preliminary framework on representative constellations to simulate targeted measurements of episodic precipitation events and subsequent urban floods. The command and control efficiency of our agile algorithm is compared to non-agile (11.3x improvement) and non-DTN (21% improvement) constellations.
Related Topics
Concepts
Spacecraft
Constellation
Agile software development
Schedule
Computer science
Satellite constellation
Scheduling (production processes)
Real-time computing
Reconfigurability
Backup
Systems engineering
Engineering
Aerospace engineering
Telecommunications
Astronomy
Software engineering
Physics
Operations management
Database
Operating system
Metadata
- Type
- preprint
- Language
- en
- Landing Page
- http://arxiv.org/abs/2010.09940
- https://arxiv.org/pdf/2010.09940
- OA Status
- green
- Cited By
- 25
- References
- 24
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W2998771969
All OpenAlex metadata
Raw OpenAlex JSON
- OpenAlex ID
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https://openalex.org/W2998771969Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.48550/arxiv.2010.09940Digital Object Identifier
- Title
-
Autonomous Scheduling of Agile Spacecraft Constellations with Delay Tolerant Networking for Reactive ImagingWork title
- Type
-
preprintOpenAlex work type
- Language
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enPrimary language
- Publication year
-
2020Year of publication
- Publication date
-
2020-10-20Full publication date if available
- Authors
-
Sreeja Nag, Alan S. Li, Vinay Ravindra, Marc Sánchez Net, Kar‐Ming Cheung, Rod Lammers, Brian P. BledsoeList of authors in order
- Landing page
-
https://arxiv.org/abs/2010.09940Publisher landing page
- PDF URL
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https://arxiv.org/pdf/2010.09940Direct link to full text PDF
- Open access
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YesWhether a free full text is available
- OA status
-
greenOpen access status per OpenAlex
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https://arxiv.org/pdf/2010.09940Direct OA link when available
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Spacecraft, Constellation, Agile software development, Schedule, Computer science, Satellite constellation, Scheduling (production processes), Real-time computing, Reconfigurability, Backup, Systems engineering, Engineering, Aerospace engineering, Telecommunications, Astronomy, Software engineering, Physics, Operations management, Database, Operating systemTop concepts (fields/topics) attached by OpenAlex
- Cited by
-
25Total citation count in OpenAlex
- Citations by year (recent)
-
2025: 2, 2024: 4, 2023: 2, 2022: 3, 2021: 5Per-year citation counts (last 5 years)
- References (count)
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24Number of works referenced by this work
- Related works (count)
-
10Other works algorithmically related by OpenAlex
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| referenced_works | https://openalex.org/W2151659169, https://openalex.org/W2317922961, https://openalex.org/W2273515758, https://openalex.org/W2073460263, https://openalex.org/W2077365872, https://openalex.org/W2768630587, https://openalex.org/W2233091689, https://openalex.org/W1483941179, https://openalex.org/W2895871327, https://openalex.org/W2162386041, https://openalex.org/W2136492770, https://openalex.org/W2032444806, https://openalex.org/W3021139174, https://openalex.org/W2726635538, https://openalex.org/W615589681, https://openalex.org/W1995835709, https://openalex.org/W2254288354, https://openalex.org/W2176177568, https://openalex.org/W2110599800, https://openalex.org/W2910296, https://openalex.org/W2572826313, https://openalex.org/W834419208, https://openalex.org/W1963628572, https://openalex.org/W2092290995 |
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