Real-time stream processing in radio astronomy

TL;DR

This paper discusses the challenges and solutions for real-time stream processing in radio astronomy, focusing on parallel digital systems that handle massive data volumes from wide-bandwidth receivers.

Contribution

It provides an overview of how digital systems for radio telescopes are implemented for real-time, multi-device data processing in radio astronomy.

Findings

Highlights the importance of parallel processing for large data volumes

Describes common digital system architectures in radio astronomy

Emphasizes real-time data reduction and output of science-ready data

Abstract

A major challenge in modern radio astronomy is dealing with the massive data volumes generated by wide-bandwidth receivers. Such massive data rates are often too great for a single device to cope, and so processing must be split across multiple devices working in parallel. These devices must work in unison to process incoming data in real time, reduce the data volume to a manageable size, and output a science-ready data product. The aim of this chapter is to give a broad overview of how digital systems for radio telescopes are commonly implemented, with a focus on real-time stream processing over multiple compute devices.