| DOI | Trouver le DOI : https://doi.org/10.1142/S2251171719400117 |
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| Auteur | Rechercher : Gunaratne, Thushara1; Rechercher : Carlson, Brent1; Rechercher : Comoretto, Gianni |
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| Affiliation | - Conseil national de recherches Canada. Herzberg en astronomie et en astrophysique
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| Format | Texte, Article |
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| Sujet | Frequency-slice (FS); Radio Frequency Interference (RFI); Sample Clock Frequency Offset (SCFO); Square Kilometre Array (SKA) |
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| Résumé | The Square Kilometre Array (SKA) Phase 1 Mid Correlator Beamformer (Mid.CBF) adopts two novel methods to mitigate radio frequency interference (RFI) at the various stages of its signal chains. First, the pioneering Sample Clock Frequency Offset (SCFO) sampling suppresses interference which leaks into individual ‘Frequency-Slice’ (FS) (sub-bands) in the cross-correlations. Second, the ‘Shift-Resample-Shift-Back’ method minimizes the addition of noise due to strong clustered RFI. Empirical studies conducted with simulation of the systems confirm that the proposed methods significantly reduce the impact of RFI on the output of the radio telescope. |
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| Date de publication | 2019-03 |
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| Maison d’édition | World Scientific Publishing |
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| Dans | |
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| Langue | anglais |
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| Publications évaluées par des pairs | Oui |
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| Exporter la notice | Exporter en format RIS |
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| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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| Identificateur de l’enregistrement | 7f6e1ecb-e93e-4371-b7b2-a3756f8d5d71 |
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| Enregistrement créé | 2019-06-06 |
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| Enregistrement modifié | 2020-03-16 |
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