Development of a New Digital Signal Processing Platform for the Square Kilometre Array
Date Issued
2018
Author(s)
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Chiello, Riccardo
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Aminaei, A.
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Baker, J.
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Dalle Mura, G.
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De Marco, A.
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Halsall, R.
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Magro, A.
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Roberts, M.
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Zaccaro, E.
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Zarb Adami, K.
Abstract
A novel digital hardware platform has been designed for
the Low Frequency Aperture Array (LFAA) component
of the Square Kilometre Array (SKA). This board, called
Analog Digital Unit (ADU), is a 6U board containing
sixteen dual-inputs Analog to Digital Converters (ADC)
and two Field Programmable Gate Array (FPGA) devices,
capable of digitizing and processing 32 RF input signals.
We present the main features of the board and the signal
processing firmware that has been developed for LFAA.
Although the ADU has been conceived mainly for the low
frequency band (50-350 MHz), its use has been proved
effective also for higher frequencies (375-650 MHz). In
this paper we describe also the application of ADU as the
digital acquisition and processing system for PHAROS2,
a cryogenically cooled 4-8 GHz Phased Array Feed (PAF)
demonstrator. The final part is focused on the future
developments of the board.
Coverage
2018 2nd URSI Atlantic Radio Science Meeting (AT-RASC)
Start page
1
Conferenece
URSI Atlantic Radio Science Conference (URSI AT-RASC)
Conferenece place
Gran Canaria, Spain
Conferenece date
28 May - 1 June 2018
Rights
open.access
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