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research article

Experimental evaluation of complete safe coordination of astrobots for Sloan Digital Sky Survey V

Macktoobian, Matin  
•
Araújo, Ricardo  
•
Grossen, Loïc  
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December 19, 2020
Experimental Astronomy

The data throughput of massive spectroscopic surveys in the course of each observation is directly coordinated with the number of optical fibers which reach their target. In this paper, we evaluate the safety and the performance of the astrobots coordination in SDSS-V by conducting various experimental and simulated tests. We illustrate that our strategy provides a complete coordination condition which depends on the operational characteristics of astrobots, their configurations, and their targets. Namely, a coordination method based on the notion of cooperative artificial potential fields is used to generate safe and complete trajectories for astrobots. Optimal target assignment further improves the performance of the used algorithm in terms of faster convergences and less oscillatory movements. Both random targets and galaxy catalog targets are employed to observe the coordination success of the algorithm in various target distributions. The proposed method is capable of handling all potential collisions in the course of coordination. Once the completeness condition is fulfilled according to initial configuration of astrobots and their targets, the algorithm reaches full convergence of astrobots. Should one assign targets to astrobots using efficient strategies, convergence time as well as the number of oscillations decrease in the course of coordination. Rare incomplete scenarios are simply resolved by trivial modifications of astrobots swarms’ parameters.

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Type
research article
DOI
10.1007/s10686-020-09687-4
Author(s)
Macktoobian, Matin  
Araújo, Ricardo  
Grossen, Loïc  
Kronig, Luzius Gregor  
Bouri, Mohamed  
Gillet, Denis  
Kneib, Jean-Paul  
Date Issued

2020-12-19

Published in
Experimental Astronomy
Volume

51

Issue

1

Start page

77

End page

94

Subjects

Instrumentation: spectrographs

•

Techniques: spectroscopic

Note

This is an Open Access article under the terms of the Creative Commons Attribution License

URL

Link to paper

https://link.springer.com/article/10.1007/s10686-020-09687-4
Editorial or Peer reviewed

REVIEWED

Written at

EPFL

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Available on Infoscience
December 19, 2020
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/174170
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