Please use this identifier to cite or link to this item:
https://www.um.edu.mt/library/oar/handle/123456789/88808| Title: | The signal processing chain of the low frequency aperture array |
| Authors: | Comoretto, Gianni Monari, Jader Belli, Carolina Chiarucci, Simone Schilliro, Francesco Schiaffino, Marco Perini, Federico Mattana, Andrea Alderighi, Monica D'Angelo, Sergio Pastore, Sandro Naldi, Giovanni Pupillo, Giuseppe Poloni, Marco Rusticelli, Simone Chiello, Riccardo Zarb Adami, Kristian Magro, Alessio |
| Keywords: | Signal processing -- Digital techniques Very large array telescopes -- Technological innovations Radio telescopes -- Technological innovations Antenna arrays -- Calibration Analog electronic systems -- Data processing |
| Issue Date: | 2020-12 |
| Publisher: | SPIE |
| Citation: | Comoretto, G., Monari, J., Belli, C., Chiarucci, S., Schillirò, F., Schiaffino, M.,...Magro, A. (2020). The signal processing chain of the low frequency aperture array. Proceedings of the SPIE, Ground-based and Airborne Telescopes VIII, Vol. 11445, 1144571, International Society for Optics and Photonics, 1-14. |
| Abstract: | The SKA LOW telescope is an interferometer composed of 512 stations. Each station consists of 256 electronically steered antennas. The Low Frequency Aperture Array is the portion of the SKA-LOW telescope including the antennas and the related electronics. The LFAA signal processing chain amplifi es, transports and combines the signals from the antennas composing each station into a coherent beam. Beamforming is performed in the frequency domain, with stringent requirements on bandpass flatness, linearity in a RFI contaminated spectral region, and allowed signal degradation. We adopted an architecture including a highly optimized oversampled polyphase fi lterbank for channelization, and a distributed network beamformer. The system has been validated as part of the Aperture Array Veri fication System, a single station operating at the SKA site in Western Australia. |
| URI: | https://www.um.edu.mt/library/oar/handle/123456789/88808 |
| Appears in Collections: | Scholarly Works - InsSSA |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| The_signal_processing_chain_of_the_low_frequency_aperture_array_2020.pdf Restricted Access | 2.55 MB | Adobe PDF | View/Open Request a copy |
Items in OAR@UM are protected by copyright, with all rights reserved, unless otherwise indicated.