A multi-beam backend for SPOTLIGHT, enabling fast transient surveys with the GMRT
SPOTLIGHT is a time-domain survey instrument to perform real-time 24/7 commensal search for Fast Radio Bursts (FRBs) and Pulsars with the GMRT [1].It uses a state-of-the-art GPU-based compute cluster which is expected to generate 2000 post-correlation beams in real-time.We present here details of four main components of the SPOTLIGHT system -1. the design and architecture of the correlator and post-correlation beamformer, 2. real-time beam synthesis ensuring precise beam shape and tiling of the field-of-view, providing on-the-fly localisation of the burst with up to arc-second accuracy, 3. online control and monitoring system to ensure piggy-back operation with the main backend, the GMRT Wideband Backend (GWB) [2], 4. real-time web-based monitoring tool that visualises the run-time status of the SPOTLIGHT system to track the proper run-time functionality of this fully automated system.
Authors
- Mekhala Muley
- Sanjay Kudale (ORCID: https://orcid.org/0000-0002-6631-1077)
- Uma Sankar Panda (ORCID: https://orcid.org/0000-0001-5452-5943)
- Siddhartha Bhattacharyya (ORCID: https://orcid.org/0000-0003-0360-7919)
- Shelton Gnanaraj
- R.K. Debnath
- Ajith Kumar (ORCID: https://orcid.org/0000-0003-0529-1938)
- Deepak Bhong
- Jayanta Roy
- Wesley Armour (ORCID: https://orcid.org/0000-0003-1756-3064)
- Arpan Pal
- Rauf A. Wani (ORCID: https://orcid.org/0000-0003-1182-7903)
- Chahat Dudeja
- Karl Bane (ORCID: https://orcid.org/0000-0002-7472-0233)
- S. U. Meshram
- Sangita Kumari
- J. P. Das
- Santaji Katore
- Harshavardhan Reddy Suda
- Kenil Ajudiya
- Nishant Deo
- Jayaram Chegalur
- Adamek Karel
Publication Details
- Published
- 2025-01-01
- DOI
- https://doi.org/10.46620/ursiaprasc25/znur8240
- Primary Topic
- Particle Accelerators and Free-Electron Lasers
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Tata Institute of Fundamental Research
- Department of Atomic Energy, Government of India