{"paper":{"title":"LOFAR Sparse Image Reconstruction","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.IM","authors_text":"A. G. Polatidis, A. Karastergiou, A. Renting, A. Rowlinson, A. Stewart, A.S. van Amesfoort, A. van der Horst, A. W. Gunst, A. Woiselle, A. Zensus, B. Ciardi, B. W. Stappers, C. Ferrari, C. Tasse, C. Toribio, C. Vocks, D. D. Mulcahy, D. Engels, D. McKay-Bukowski, D. Schwarz, E. de Geus, E. Juette, E. Orru, F. Breitling, F. De Gasperin, G. Heald, G. Kuper, G. Mann, G. Pietka, H. Falcke, H. Garsden, H. Munk, H. Paas, H. R. Butcher, H. R\\\"ottgering, I. M. Avruch, J. Anderson, J. Broderick, J. Eisl\\\"offel, J. Griessmeier, J. H\\\"orandel, J. L. Starck, J. N. Girard, J. P. McKean, J. Sluman, J. Swinbank, M. A. Garrett, M. Br\\\"uggen, M. de Vos, M. Hoeft, M. J. Bentum, M. J. Norden, M. Kramer, M. Kuniyoshi, M. Pandey-Pommier, M. Steinmetz, M. Tagger, M. W. Wise, O. Smirnov, O. Wucknitz, P. Best, P. Zarka, R. A. Fallows, R. Beck, R. Fender, R. J. van Weeren, R. McFadden, R. Pizzo, R. Vermeulen, S. Corbel, S. Duscha, S. J. Wijnholds, S. Markoff, S. Thoudam, S. Yatawatta, T. E. Hassall, V. I. Kondratiev, V. N. Pandey, W. Frieswijk, Y. Tang","submitted_at":"2014-06-27T17:28:01Z","abstract_excerpt":"Context. The LOw Frequency ARray (LOFAR) radio telescope is a giant digital phased array interferometer with multiple antennas distributed in Europe. It provides discrete sets of Fourier components of the sky brightness. Recovering the original brightness distribution with aperture synthesis forms an inverse problem that can be solved by various deconvolution and minimization methods Aims. Recent papers have established a clear link between the discrete nature of radio interferometry measurement and the \"compressed sensing\" (CS) theory, which supports sparse reconstruction methods to form an i"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1406.7242","kind":"arxiv","version":3},"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"}