{"paper":{"title":"A Digital-Receiver for the Murchison Widefield Array","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.IM","authors_text":"Alan E. Rogers, Alan R. Whitney, Andrew J. Williams, Avinash A. Deshpande, Barton B. Kincaid, Brian Crosse, Brian E. Corey, Bryna J. Hazelton, Christopher Williams, Colin J. Lonsdale, Daniel A. Mitchell, D. Anish Roshi, David Emrich, David G. Barnes, David Herne, David L. Kaplan, Deepak Kumar, Divya Oberoi, D. Pallot, Edward H. Morgan, Eric Kratzenberg, Frank H. Briggs, Gianni Bernardi, Gopalakrishna M R, Grant Hampson, Jacqueline N. Hewitt, Jamie B. Stevens, John D. Bunton, Joseph E. Salah, Joseph Pathikulangara, Judd D. Bowman, Justin C. Kasper, K. S. Srivani, Lincoln J. Greenhill, Ludi deSouza, Mark Waterson, Melanie Johnston-Hollitt, Mervyn J. Lynch, Miguel F. Morales, N. Udaya Shankar, P. A. Kamini, Rachel L. Webster, Randall B. Wayth, Ravi Subrahmanyan, Robert F. Goeke, Robert J. Sault, Roger J. Cappallo, Ronald A. Remillard, Ronald Koenig, Russell McWhirter, S. E. Tremblay, S. Madhavi, Stephen M. Ord, Steven J. Tingay, Stuart B. Wyithe, T. Booler, Thiagaraj Prabu, Wayne Arcus","submitted_at":"2015-02-14T00:04:40Z","abstract_excerpt":"An FPGA-based digital-receiver has been developed for a low-frequency imaging radio interferometer, the Murchison Widefield Array (MWA). The MWA, located at the Murchison Radio-astronomy Observatory (MRO) in Western Australia, consists of 128 dual-polarized aperture-array elements (tiles) operating between 80 and 300\\,MHz, with a total processed bandwidth of 30.72 MHz for each polarization. Radio-frequency signals from the tiles are amplified and band limited using analog signal conditioning units; sampled and channelized by digital-receivers. The signals from eight tiles are processed by a si"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1502.05015","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}