A Digital Broadband Beamforming Architecture for 2-PAD

Details A Digital Broadband Beamforming Architecture for 2-PAD A Digital Broadband Beamforming Architecture for 2-PAD

2009-12-02

arxiv.org/abs/0912.0380v2

Wide Field Science and Technology for the Square Kilometre Array, November 2009, pp. 284-288

Astronomy and Astrophysics

Astrophysics

Instrumentation and Methods for Astrophysics

Submitted to Widefield Science and Technology for the SKA, SKADS Conference 2009, Chateau de Limelette, Belgium, 4-6 novemer 2

Scientific paper

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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