Speaker
Description
Upcoming large radio interferometers will require the development of novel data processing algorithms. Possible advantages of the use of antenna-level data include direct detection and mitigation of radio frequency interference (RFI) and detection of burst signals of astrophysical origin. A simulator of the observed radio signals at antenna level facilitates the development and testing of these techniques and improvements. We present an implementation of a simulator that produces raw antenna voltages and channelized antenna voltages based on a given sky model and interferometer configuration. The simulated sky model components can include point sources and pulsars. They are specified by their positions, brightness matrices and spectra. To check for consistency, the simulated voltages can be correlated and the resulting visibilities can be imaged to recover the sky image with the algorithms CLEAN or resolve. We compare our results with the results of the visibility simulator OSKAR for the same sky model and highlight similarities and differences on the visibility level. Overall, we find a good agreement.
| Affiliation of the submitter | Deutsches Zentrum für Astrophysik |
|---|---|
| Attendance | in-person |
