OmniUV: A Multi-Purpose Simulation Toolkit for VLBI Observation
arXiv:2201.03797 · doi:10.3847/1538-3881/ac77f0
Abstract
We present OmniUV, a multi-purpose simulation toolkit for space and ground VLBI observations. It supports various kinds of VLBI stations, including Earth (ground) fixed, Earth orbit, Lunar fixed, Lunar orbit, Moon-Earth and Earth-Sun Lagrange 1 and 2 points, etc. The main functionalities of this toolkit are: (1) Trajectory calculation; (2) Baseline uv calculation, by taking the vailability of each station into account; (3) Visibility simulation for the given uv distribution, source structure and system noise; (4) Image and beam reconstruction. Two scenarios, namely space VLBI network and wide field array, are presented as demonstrations of the toolkit applications in completely different scales. OmniUV is the acronym of "Omnipotent UV". We hope it could work as a general framework, in which various kinds of stations could be easily incorporated and the functionalities could be further extended. The toolkit has been made publicly available.
arXiv comment16 pages, 10 figures, accepted for publication in AJ
References in corpus (10)
- First M87 Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole
- Revisiting the radio interferometer measurement equation. I. A full-sky Jones formalism
- Interferometric Imaging Directly with Closure Phases and Closure Amplitudes
- The impact of point source subtraction residuals on 21 cm Epoch of Reionization estimation
- The MeqTrees software system and its use for third-generation calibration of radio interferometers
- Metrics and Motivations for Earth-Space VLBI: Time-Resolving Sgr A* with the Event Horizon Telescope
- Efficient wide-field radio interferometry response
- Simulations of M87 and Sgr A* Imaging with the Millimetron Space Observatory on near-Earth orbits
- MeqSilhouette : A mm-VLBI observation and signal corruption simulator
- The optimization of satellite orbit for Space-VLBI observation