4 papers
A novel technique for reflection coefficient measurement in precision cosmology
Adarsh Kumar Dash, Yash Agrawal, Somashekar R. +7
The detection of the global 21-cm signal from the Cosmic Dawn and Epoch of Reionisation remains a challenge to experiments worldwide. Emitted at a rest-frame frequency of 1420.405~…
A Multi-Site Study of Radio Environment for Cosmology Experiments
Yash Agrawal, Saurabh Singh, Girish B. S. +7
Radio Frequency Interference (RFI) presents a significant challenge for carrying out precision measurements in radio astronomy. In particular, RFI can be a showstopper when looking…
An SBC-based controller and processor for the laboratory model of PRATUSH Digital Receiver
Srivani K. S., Girish B. S., Mayuri Sathyanarayana Rao +10
Probing ReionizATion of the Universe using Signal from Hydrogen (PRATUSH) is a proposed space-based radiometer that aims to detect the sky-averaged 21-cm signal from Cosmic Dawn -…
Direction-dependent effects on global 21-cm detection
Yash Agrawal, K. Kavitha, Saurabh Singh
Cosmic dawn represents critical juncture in cosmic history when the first population of stars emerged. The astrophysical processes that govern this transformation need to be better…