Signal Processing Firmware for the Low Frequency Aperture Array
| Autor: | M. Poloni, Carolina Belli, Alessio Magro, Jader Monari, Andrea De Marco, Gianni Comoretto, Simone Chiarucci, Riccardo Chiello, Rob Halsall, A. Mattana, Federico Perini, S. D'Angelo, Amin Aminaei, Simone Rusticelli, Gabriele Dalle Mura, Giuseppe Pupillo, Kristian Zarb Adami, Emanuele Zaccaro, M. Schiaffino, Monica Alderighi, S. Pastore, Jeremy Baker, Matthew J. Roberts, Giovanni Naldi, Francesco Schillirò |
|---|---|
| Přispěvatelé: | ITA, GBR, MLT |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Beamforming
Aperture array Physics - Instrumentation and Detectors Computer science FOS: Physical sciences computer.software_genre 01 natural sciences Signal 0103 physical sciences Oversampling Polyphase system 010303 astronomy & astrophysics Instrumentation Instrumentation and Methods for Astrophysics (astro-ph.IM) Computer Science::Information Theory Signal processing 010308 nuclear & particles physics Firmware business.industry Astrophysics::Instrumentation and Methods for Astrophysics Astronomy and Astrophysics Instrumentation and Detectors (physics.ins-det) Filter bank Dual-polarization interferometry Antenna (radio) business Astrophysics - Instrumentation and Methods for Astrophysics computer Computer hardware |
| Popis: | The signal processing firmware that has been developed for the Low Frequency Aperture Array component of the Square Kilometre Array is described. The firmware is implemented on a dual FPGA board, that is capable of processing the streams from 16 dual polarization antennas. Data processing includes channelization of the sampled data for each antenna, correction for instrumental response and for geometric delays and formation of one or more beams by combining the aligned streams. The channelizer uses an oversampling polyphase filterbank architecture, allowing a frequency continuous processing of the input signal without discontinuities between spectral channels. Each board processes the streams from 16 antennas, as part of larger beamforming system, linked by standard Ethernet interconnections. There are envisaged to be 8192 of these signal processing platforms in the first phase of the Square Kilometre array so particular attention has been devoted to ensure the design is low cost and low power. 19 pages |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|