A Digital Broadband Beamforming Architecture for 2-PAD
R. Armstrong, J. Hickish, K. Zarb Adami, M.E. Jones
TL;DR
This paper presents a hierarchical, frequency-domain beamforming architecture designed for wideband digital aperture arrays, specifically implemented for the 2-PAD demonstrator, addressing real-time processing challenges for large radio telescope arrays.
Contribution
It introduces a novel digital beamforming architecture tailored for the 2-PAD array, advancing real-time processing capabilities for wideband radio astronomy.
Findings
Successful implementation of the architecture on the 2-PAD demonstrator
Enhanced real-time beamforming performance for wideband signals
Supports development of large-scale digital aperture arrays
Abstract
We describe an hierarchical, frequency-domain beamforming architecture for synthesising a sky beam from the wideband antenna feeds of digital aperture arrays. The development of densely-packed, all-digital aperture arrays is an important area of research required for the Square Kilometre Array (SKA) radio telescope. The design of real-time signal processing systems for digital aperture arrays is currently a central challenge in pathfinder projects worldwide. In particular, this work describes a specific implementation of the beamforming architecture to the 2-Polarisation All-Digital (2-PAD) aperture array demonstrator.
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Taxonomy
TopicsRadio Astronomy Observations and Technology · Antenna Design and Optimization · Microwave Engineering and Waveguides