Abstract Details
| Name: Sahana Bhattramakki Affiliation: Raman Research Institute Conference ID: ASI2025_708 Title : FFT beamforming implimentation on RFSOC Authors and Co-Authors : Sahana Bhattramakki, , Kamini PA, Madhavi S, Arul Pandian, Abhishek R, Prabu T Abstract Type : Poster Abstract Category : Facilities, Technologies and Data science Abstract : As part of SKA-Low development, we are increasing the number of simultaneous beams formed by the SKA Tile processing module to 48, which will help create the sensitive beams for FRB search, pulsar search and pulsar timing with the SKA-Low Telescope. The SKA-Low arrangement will have 1,31,072 LPDA-based antenna elements to be deployed in Australia. As the tile beamforming cannot be easily verified in a local site, such as the Gauribidanur observatory, without having such a large number of antennas in place, we are investigating alternative schemes, including an FFT-based beamforming option that will work well for smaller-scale aperture arrays that may be deployed elsewhere, such as the upcoming LPDA arrays in the Gauribidanur observatory. If the antennas can be evenly spaced, the FFT-based beamforming offers a more efficient way to create multiple uniformly spaced search beams in the sky. These are especially helpful for transient searches, like the upcoming investigation into Fast Radio Bursts (FRBs) at the observatory. This new beamforming is planned to be implemented in a new RFSoC FPGA platform. The paper will present the salient features of this work, highlighting the results obtained and describing the future expansion plans. |