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As part of an on-going effort to simplify the data analysis path for VLBI experiments, a pipeline procedure has been developed at JIVE to carry out much of the data reduction required for EVN experiments in an automated fashion. This…

Astrophysics · Physics 2016-08-30 C. Reynolds , Z. Paragi , M. Garrett

One major goal in fast radio burst science is to detect fast radio bursts (FRBs) over a wide field of view without sacrificing the angular resolution required to pinpoint them to their host galaxies. Wide-field detection and localization…

This paper presents the third extension to the Very Large Baseline Array (VLBA) Calibrator Survey, containing 360 new sources not previously observed with very long baseline interferometry (VLBI). The survey, based on three 24 hour VLBA…

Astrophysics · Physics 2011-07-18 L. Petrov , Y. Y. Kovalev , E. Fomalont , D. Gordon

Video frame interpolation(VFI) has witnessed great progress in recent years. While existing VFI models still struggle to achieve a good trade-off between accuracy and efficiency: fast models often have inferior accuracy; accurate models…

Computer Vision and Pattern Recognition · Computer Science 2023-04-26 Ban Chen , Xin Jin , Youxin Chen , Longhai Wu , Jie Chen , Jayoon Koo , Cheul-hee Hahm

By linking widely separated radio dishes, the technique of very long baseline interferometry (VLBI) can greatly enhance angular resolution in radio astronomy. However, at any given moment, a VLBI array only sparsely samples the information…

Space Very Long Baseline Interferometry is a radio astronomy technique distinguished by a record-high angular resolution reaching single-digit microseconds of arc. The paper provides a brief account of the history of developments of this…

Instrumentation and Methods for Astrophysics · Physics 2023-12-27 Leonid I. Gurvits

The first very long baseline interferometry (VLBI) detections at 870$\mu$m wavelength (345$\,$GHz frequency) are reported, achieving the highest diffraction-limited angular resolution yet obtained from the surface of the Earth, and the…

Instrumentation and Methods for Astrophysics · Physics 2024-10-11 Alexander W. Raymond , Sheperd S. Doeleman , Keiichi Asada , Lindy Blackburn , Geoffrey C. Bower , Michael Bremer , Dominique Broguiere , Ming-Tang Chen , Geoffrey B. Crew , Sven Dornbusch , Vincent L. Fish , Roberto García , Olivier Gentaz , Ciriaco Goddi , Chih-Chiang Han , Michael H. Hecht , Yau-De Huang , Michael Janssen , Garrett K. Keating , Jun Yi Koay , Thomas P. Krichbaum , Wen-Ping Lo , Satoki Matsushita , Lynn D. Matthews , James M. Moran , Timothy J. Norton , Nimesh Patel , Dominic W. Pesce , Venkatessh Ramakrishnan , Helge Rottmann , Alan L. Roy , Salvador Sánchez , Remo P. J. Tilanus , Michael Titus , Pablo Torne , Jan Wagner , Jonathan Weintroub , Maciek Wielgus , André Young , Kazunori Akiyama , Ezequiel Albentosa-Ruíz , Antxon Alberdi , Walter Alef , Juan Carlos Algaba , Richard Anantua , Rebecca Azulay , Uwe Bach , Anne-Kathrin Baczko , David Ball , Mislav Baloković , Bidisha Bandyopadhyay , John Barrett , Michi Bauböck , Bradford A. Benson , Dan Bintley , Raymond Blundell , Katherine L. Bouman , Hope Boyce , Roger Brissenden , Silke Britzen , Avery E. Broderick , Thomas Bronzwaer , Sandra Bustamante , John E. Carlstrom , Andrew Chael , Chi-kwan Chan , Dominic O. Chang , Koushik Chatterjee , Shami Chatterjee , Yongjun Chen , Xiaopeng Cheng , Ilje Cho , Pierre Christian , Nicholas S. Conroy , John E. Conway , Thomas M. Crawford , Alejandro Cruz-Osorio , Yuzhu Cui , Rohan Dahale , Jordy Davelaar , Mariafelicia De Laurentis , Roger Deane , Jessica Dempsey , Gregory Desvignes , Jason Dexter , Vedant Dhruv , Indu K. Dihingia , Sergio A. Dzib , Ralph P. Eatough , Razieh Emami , Heino Falcke , Joseph Farah , Edward Fomalont , Anne-Laure Fontana , H. Alyson Ford , Marianna Foschi , Raquel Fraga-Encinas , William T. Freeman , Per Friberg , Christian M. Fromm , Antonio Fuentes , Peter Galison , Charles F. Gammie , Boris Georgiev , Roman Gold , Arturo I. Gómez-Ruiz , José L. Gómez , Minfeng Gu , Mark Gurwell , Kazuhiro Hada , Daryl Haggard , Ronald Hesper , Dirk Heumann , Luis C. Ho , Paul Ho , Mareki Honma , Chih-Wei L. Huang , Lei Huang , David H. Hughes , Shiro Ikeda , C. M. Violette Impellizzeri , Makoto Inoue , Sara Issaoun , David J. James , Buell T. Jannuzi , Britton Jeter , Wu Jiang , Alejandra Jiménez-Rosales , Michael D. Johnson , Svetlana Jorstad , Adam C. Jones , Abhishek V. Joshi , Taehyun Jung , Ramesh Karuppusamy , Tomohisa Kawashima , Mark Kettenis , Dong-Jin Kim , Jae-Young Kim , Jongsoo Kim , Junhan Kim , Motoki Kino , Prashant Kocherlakota , Yutaro Kofuji , Patrick M. Koch , Shoko Koyama , Carsten Kramer , Joana A. Kramer , Michael Kramer , Derek Kubo , Cheng-Yu Kuo , Noemi La Bella , Sang-Sung Lee , Aviad Levis , Zhiyuan Li , Rocco Lico , Greg Lindahl , Michael Lindqvist , Mikhail Lisakov , Jun Liu , Kuo Liu , Elisabetta Liuzzo , Andrei P. Lobanov , Laurent Loinard , Colin J. Lonsdale , Amy E. Lowitz , Ru-Sen Lu , Nicholas R. MacDonald , Sylvain Mahieu , Doris Maier , Jirong Mao , Nicola Marchili , Sera Markoff , Daniel P. Marrone , Alan P. Marscher , Iván Martí-Vidal , Lia Medeiros , Karl M. Menten , Izumi Mizuno , Yosuke Mizuno , Joshua Montgomery , Kotaro Moriyama , Monika Moscibrodzka , Wanga Mulaudzi , Cornelia Müller , Hendrik Müller , Alejandro Mus , Gibwa Musoke , Ioannis Myserlis , Hiroshi Nagai , Neil M. Nagar , Masanori Nakamura , Gopal Narayanan , Iniyan Natarajan , Antonios Nathanail , Santiago Navarro Fuentes , Joey Neilsen , Chunchong Ni , Michael A. Nowak , Junghwan Oh , Hiroki Okino , Héctor Raúl Olivares Sánchez , Tomoaki Oyama , Feryal Özel , Daniel C. M. Palumbo , Georgios Filippos Paraschos , Jongho Park , Harriet Parsons , Ue-Li Pen , Vincent Piétu , Aleksandar PopStefanija , Oliver Porth , Ben Prather , Giacomo Principe , Dimitrios Psaltis , Hung-Yi Pu , Philippe A. Raffin , Ramprasad Rao , Mark G. Rawlings , Angelo Ricarte , Bart Ripperda , Freek Roelofs , Cristina Romero-Cañizales , Eduardo Ros , Arash Roshanineshat , Ignacio Ruiz , Chet Ruszczyk , Kazi L. J. Rygl , David Sánchez-Argüelles , Miguel Sánchez-Portal , Mahito Sasada , Kaushik Satapathy , Tuomas Savolainen , F. Peter Schloerb , Jonathan Schonfeld , Karl-Friedrich Schuster , Lijing Shao , Zhiqiang Shen , Des Small , Bong Won Sohn , Jason SooHoo , León David Sosapanta Salas , Kamal Souccar , Ranjani Srinivasan , Joshua S. Stanway , He Sun , Fumie Tazaki , Alexandra J. Tetarenko , Paul Tiede , Kenji Toma , Teresa Toscano , Efthalia Traianou , Tyler Trent , Sascha Trippe , Matthew Turk , Ilse van Bemmel , Huib Jan van Langevelde , Daniel R. van Rossum , Jesse Vos , Derek Ward-Thompson , John Wardle , Jasmin E. Washington , Robert Wharton , Kaj Wiik , Gunther Witzel , Michael F. Wondrak , George N. Wong , Qingwen Wu , Nitika Yadlapalli , Paul Yamaguchi , Aristomenis Yfantis , Doosoo Yoon , Ziri Younsi , Wei Yu , Feng Yuan , Ye-Fei Yuan , J. Anton Zensus , Shuo Zhang , Guang-Yao Zhao , Shan-Shan Zhao

The application of Very Long Baseline Interferometry (VLBI) to the Search for Extraterrestrial Intelligence (SETI) has been limited to date, despite the technique offering many advantages over traditional single-dish SETI observations. In…

The ESO Very Large Telescope Interferometer (VLTI) is one of the leading interferometric facilities. It is equipped with several 8.2 and 1.8m telescopes, a large number of baselines up to 200m, and with several subsystems designed to enable…

Astrophysics · Physics 2009-11-10 A. Richichi , I. Percheron

Objective Interaction vertex imaging (IVI) is used for range monitoring in carbon ion radiotherapy, detecting depth differences between Bragg peak positions. Online range monitoring, which provides feedback during beam delivery, is…

Customized digital backends for Very Long Baseline Interferometry (VLBI) are critical components for radio astronomy observatories. There are several serialized products such as the Digital Baseband Converter (DBBC), Reconfigurable Open…

Instrumentation and Methods for Astrophysics · Physics 2025-02-24 Jiyun Li , Renjie Zhu , Shaoguang Guo , Ping Rui , Zhijun Xu

Very Long Baseline Interferometry (VLBI) provides the highest-resolution radio intensity maps, crucial for detailed studies of compact sources like active galactic nuclei (AGN) and their relativistic jets. Analyzing jet components in these…

Instrumentation and Methods for Astrophysics · Physics 2025-10-02 Alfredo Amador-Portes , Eva Palafox , Víctor M. Patiño-Álvarez , Vahram Chavushyan , Andrei P. Lobanov , Sergio A. Dzib

This paper presents the fifth part of the Very Long Baseline Array (VLBA) Calibrator Survey (VCS), containing 569 sources not observed previously with very long baseline interferometry in geodetic or absolute astrometry programs. This…

Astrophysics · Physics 2008-11-26 Y. Y. Kovalev , L. Petrov , E. B. Fomalont , D. Gordon

Reconstructing an image from sparsely sampled Fourier data is an ill-posed inverse problem that occurs in a variety of subjects within science, including the data analysis for Very Long Baseline Interferometry (VLBI) and the…

Instrumentation and Methods for Astrophysics · Physics 2024-01-22 Hendrik Müller , Paolo Massa , Alejandro Mus , Jong-Seo Kim , Emma Perracchione

Very long baseline interferometry (VLBI) astrometry is used to determine the three-dimensional position and proper motion of astronomical objects. A typical VLBI astrometric campaign generally includes around ten observations, making it…

High Energy Astrophysical Phenomena · Physics 2025-07-30 Ashish Kumar , Adam T. Deller , Pankaj Jain , Javier Moldón

Interplanetary scintillation (IPS) provides an approach for identifying the presence of sub-arcsec structures in radio sources, and very long baseline interferometry (VLBI) technique can help verify whether the IPS sources have fine…

Astrophysics of Galaxies · Physics 2021-10-27 Sumit Jaiswal , Tao An , Ailing Wang , Steven Tingay

In this paper a description is given of the SFXC software correlator, developed and maintained at the Joint Institute for VLBI in Europe (JIVE). The software is designed to run on generic Linux-based computing clusters. The correlation…

We revisit the "Cluster-Cluster" or multi-view Very-Long-Baseline-Interferometry (VLBI) technique from the perspective of its synergy with the multi-beam features inherent in the Australian Square Kilometer Array Pathfinder (ASKAP)and its…

Instrumentation and Methods for Astrophysics · Physics 2009-09-28 M. J. Rioja , R. Dodson , R. W. Porcas , D. Ferris , J. Reynolds , T. Sasao , R. T. Schilizzi

We propose a probabilistic framework for performing simultaneous estimation of source structure and fringe-fitting parameters in Very Long Baseline Interferometry (VLBI) observations. As a first step, we demonstrate this technique through…

Instrumentation and Methods for Astrophysics · Physics 2020-06-10 Iniyan Natarajan , Roger Deane , Ilse van Bemmel , Huib Jan van Langevelde , Des Small , Mark Kettenis , Zsolt Paragi , Oleg Smirnov , Arpad Szomoru

We describe the development of an FX style correlator for Very Long Baseline Interferometry (VLBI), implemented in software and intended to run in multi-processor computing environments, such as large clusters of commodity machines (Beowulf…

Astrophysics · Physics 2009-11-13 A. T. Deller , S. J. Tingay , M. Bailes , C. West