Experimental evaluation of complete safe coordination of astrobots for Sloan Digital Sky Survey V
arXiv:2012.10656 · doi:10.1007/s10686-020-09687-4
Abstract
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.
arXiv commenthttps://link.springer.com/article/10.1007/s10686-020-09687-4
References in corpus (24)
- Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
- The Eleventh and Twelfth Data Releases of the Sloan Digital Sky Survey: Final Data from SDSS-III
- The 2.5 m Telescope of the Sloan Digital Sky Survey
- The Baryon Oscillation Spectroscopic Survey of SDSS-III
- Overview of the DESI Legacy Imaging Surveys
- Overview of the SDSS-IV MaNGA Survey: Mapping Nearby Galaxies at Apache Point Observatory
- The Multi-Object, Fiber-Fed Spectrographs for SDSS and the Baryon Oscillation Spectroscopic Survey
- The SDSS-IV extended Baryon Oscillation Spectroscopic Survey: Overview and Early Data
- Probing Dark Energy with Baryonic Acoustic Oscillations from Future Large Galaxy Redshift Surveys
- Extragalactic Science, Cosmology and Galactic Archaeology with the Subaru Prime Focus Spectrograph (PFS)
- Galaxy Clustering in Early SDSS Redshift Data
- The Milky Way Tomography with SDSS: II. Stellar Metallicity
- Redshift-Space Distortions, Pairwise Velocities and Nonlinearities
- The WiggleZ Dark Energy Survey: the growth rate of cosmic structure since redshift z=0.9
- Dark Energy vs. Modified Gravity
- The SDSS-IV MaNGA Sample: Design, Optimization, and Usage Considerations
- Target Selection for the SDSS-IV APOGEE-2 Survey
- A Dynamical Classification of the Cosmic Web
- The Carnegie Supernova Project: The Low-Redshift Survey
- The SDSS-IV extended Baryon Oscillation Spectroscopic Survey: Baryon Acoustic Oscillations at redshift of 0.72 with the DR14 Luminous Red Galaxy Sample
- Cosmology with High-redshift Galaxy Survey: Neutrino Mass and Inflation
- Collision Avoidance in Next-generation Fiber Positioner Robotic System for Large Survey Spectrograph
- Redshifts in the Southern Abell Redshift Survey Clusters. I. The Data
- Optimal target assignment for massive spectroscopic surveys