English
Related papers

Related papers: Radio Astronomy and eVLBI using KAREN

200 papers

Korean VLBI Network (KVN) is the first dedicated mm-wavelength VLBI Network in East Asia and will be available from the middle of 2008. KVN consists of three stations and has the maximum observation frequency of 129 GHz with the maximum…

Korea's new VLBI project to construct the Korean VLBI Network (KVN) started in 2001, as a 7-year project that is fully funded by our government. We plan to build 3 new high-precision radio telescopes of 21-m diameter in 3 places in Korea,…

Astrophysics · Physics 2007-05-23 H. -G. Kim , S. -T. Han , B. W. Sohn , S. -J. Oh , D. -H. Je , S. -O. Wi , M. -G. Song

In the African continent, South Africa has world-class astronomical facilities for advanced radio astronomy research. With the advent of the Square Kilometre Array project in South Africa (SA SKA), six countries in Africa (SA SKA partner…

Instrumentation and Methods for Astrophysics · Physics 2020-03-20 Marcellin Atemkeng , Patrice M. Okouma , Eric Maina , Roger Ianjamasimanana , Serges Zambou

The East Asian very-long-baseline interferometry (VLBI) Network (EAVN) is a rapidly evolving international VLBI array that is currently promoted under joint efforts among China, Japan, and Korea. EAVN aims at forming a joint VLBI Network by…

The KVN+VERA array is a joint VLBI project of seven VLBI stations spread throughout Korea and Japan. Since the first fringe detection in 2008, the early phase observations of the KVN+VERA have been carried out every several months.…

Instrumentation and Methods for Astrophysics · Physics 2013-10-11 S. Sawada-Satoh

We present a summary of the observation strategy of TANAMI (Tracking Active Galactic Nuclei with Austral Milliarcsecond Interferometry), a monitoring program to study the parsec-scale structure and dynamics of relativistic jets in active…

Simultaneous observations at multiple frequency bands have the potential to overcome the fundamental limitation imposed by the atmospheric propagation in mm-VLBI observations. The propagation effects place a severe limit in the sensitivity…

Instrumentation and Methods for Astrophysics · Physics 2015-12-23 Maria J. Rioja , Richard Dodson , Taehyun Jung , Bong Won Sohn

Results of a pilot project with the participation of the "Kvazar-KVO" radio interferometry array in observations carried out with the European VLBI Network are presented. The aim of the project was to conduct and analyze multi-frequency…

Astrophysics of Galaxies · Physics 2018-11-19 P. A. Voitsik , A. B. Pushkarev , Y. Y. Kovalev , A. V. Plavin , A. P. Lobanov , A. V. Ipatov

Emergency communication is vital for search and rescue operations following natural disasters. Unmanned Aerial Vehicles (UAVs) can significantly assist emergency communication by agile positioning, maintaining connectivity during rapid…

Networking and Internet Architecture · Computer Science 2023-09-01 Sharvari N P , Dibakar Das , Jyotsna Bapat , Debabrata Das

SDR (Software Defined Radio) provides flexible, reproducible, and longer-lasting radio tools for military and civilian wireless communications infrastructure. SDR is a radio communication system whose components are implemented as software.…

Networking and Internet Architecture · Computer Science 2025-06-24 Mehmet Kaan Erol , Eyup Emre Ulku

The AuScope geodetic Very Long Baseline Interferometry array consists of three new 12 m radio telescopes and a correlation facility in Australia. The telescopes at Hobart (Tasmania), Katherine (Northern Territory) and Yarragadee (Western…

The African Very Long Baseline Interferometry Network (AVN) is a pan-African project that will develop Very Long Baseline Interferometry (VLBI) observing capability in several countries across the African continent, either by conversion of…

Very Long Baseline Interferometry (VLBI) offers unrivalled resolution in studies of celestial radio sources. The subjects of interest of the IAU Symposium No. 356, the Active Galactic Nuclei (AGN) of all types, constitute the major…

Instrumentation and Methods for Astrophysics · Physics 2021-02-03 Leonid I. Gurvits , Robert Beswick , Melvin Hoare , Ann Njeri , Jay Blanchard , Carla Sharpe , Adrian Tiplady , Aletha de Witt

The Five-hundred-meter Aperture Spherical Telescope (FAST), the world's largest single-dish radio telescope, lists the search for extraterrestrial intelligence (SETI) as one of its key scientific objectives. In this work, we present a…

Instrumentation and Methods for Astrophysics · Physics 2026-01-19 Jian-Kang Li , Zhen-Zhao Tao , Pei Wang , Tong-Jie Zhang

We present a technique to search for fast radio bursts in records obtained with broadband radiometers having few radio channels. The technique is applied to the RATAN-600 surveys carried out at its Western Sector since the year 2017. A 1D…

Instrumentation and Methods for Astrophysics · Physics 2025-09-16 D. O. Kudryavtsev , S. A. Trushkin , P. G. Tsybulev , V. A. Stolyarov

In this work, we propose a new method of computing the Karhunen-Lo\`{e}ve Transform (KLT) applied to complex voltage data for the detection and noise level reduction in astronomical signals. We compared this method with the standard KLT…

Instrumentation and Methods for Astrophysics · Physics 2020-03-10 Matteo Trudu , Maura Pilia , Gregory Hellbourg , Pierpaolo Pari , Nicolò Antonietti , Claudio Maccone , Andrea Melis , Delphine Perrodin , Alessio Trois

The Cluster Wideband Data instrument has been used to determine the locations of auroral kilometric radiation (AKR) using very long baseline interferometry. The technique involves cross-correlating individual AKR bursts from all six Cluster…

Astrophysics · Physics 2015-06-24 R. L. Mutel , D. A. Gurnett , I. W. Christopher , J. Pickett , M. Schlax

The internet has been used for data transfer in radio astronomy ever since its inception; however it is only recently that network bandwidth capability means that the internet becomes competitive with traditional forms of data storage. Very…

Instrumentation and Methods for Astrophysics · Physics 2014-11-20 R. E. Spencer , R. Hughes-Jones , M. Strong , S. Casey , A. Rushton , P. Burgess , S. Kershaw , C. Greenwood

Current network access infrastructures are characterized by heterogeneity, low latency, high throughput, and high computational capability, enabling massive concurrent connections and various services. Unfortunately, this design does not…

Networking and Internet Architecture · Computer Science 2021-03-02 Nhu-Ngoc Dao , Quoc-Viet Pham , Ngo Hoang Tu , Tran Thien Thanh , Vo Nguyen Quoc Bao , Demeke Shumeye Lakew , Sungrae Cho

The Gaia celestial reference frame (Gaia-CRF) will benefit from a close assessment with independent methods, such as Very Long Baseline Interferometry (VLBI) measurements of radio stars at bright magnitudes. However, obtaining full…

Instrumentation and Methods for Astrophysics · Physics 2024-03-27 Jingdong Zhang , Bo Zhang , Shuangjing Xu , Niu Liu , Wen Chen , Hao Ding , Pengfei Jiang , Yan Sun , Jinqing Wang , Lang Cui , Shiming Wen , Xiaofeng Mai , Jinling Li , Fengchun Shu , Yidan Huang