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Radio astronomy is entering the era of large surveys. This paper describes the plans for wide surveys with the LOw Frequency ARray (LOFAR) and their synergy with large surveys at higher frequencies (in particular in the 1-2 GHz band) that…

Cosmology and Nongalactic Astrophysics · Physics 2010-01-15 R. Morganti , H. Rottgering , I. Snellen , G. Miley , P. Barthel , P. Best , M. Bruggen , G. Brunetti , K. Chyzy , J. Conway , M. Jarvis , M. Lehnert

This paper introduces the first results of observations with the Ultra-Long-Wavelength (ULW) -- Low Frequency Interferometer and Spectrometer (LFIS) on board the selenocentric satellite Longjiang-2. We present a brief description of the…

NASA's return to the Moon presents unparalleled opportunities to advance high-impact scientific capabilities. At the cutting edge of these possibilities are extremely high-resolution interferometric observations at visible and ultraviolet…

The Moon is a unique platform for fundamental astrophysical measurements of gravitation, the Sun, and the Universe. Lacking a permanent ionosphere and, on the farside, shielded from terrestrial radio emissions, a radio telescope on the Moon…

Instrumentation and Methods for Astrophysics · Physics 2009-09-15 Jack O. Burns , the LUNAR Consortium

A mega-constellation of low-earth orbit (LEO) satellites has the potential to enable long-range communication with low latency. Integrating this with burgeoning unmanned aerial vehicle (UAV) assisted non-terrestrial networks will be a…

Networking and Internet Architecture · Computer Science 2020-05-27 Ju-Hyung Lee , Jihong Park , Mehdi Bennis , Young-Chai Ko

The LOw Frequency Array, LOFAR, is a next generation radio telescope with its core in the Netherlands and elements distributed throughout Europe. It has exceptional collecting area and wide bandwidths at frequencies from 10 MHz up to 250…

High Energy Astrophysical Phenomena · Physics 2015-06-11 Vladislav Kondratiev , Ben Stappers , the LOFAR Pulsar Working Group

LOFAR, the LOw-Frequency ARray, is a new-generation radio interferometer constructed in the north of the Netherlands and across europe. Utilizing a novel phased-array design, LOFAR covers the largely unexplored low-frequency range from…

Instrumentation and Methods for Astrophysics · Physics 2015-06-15 M. P. van Haarlem , M. W. Wise , A. W. Gunst , G. Heald , J. P. McKean , J. W. T. Hessels , A. G. de Bruyn , R. Nijboer , J. Swinbank , R. Fallows , M. Brentjens , A. Nelles , R. Beck , H. Falcke , R. Fender , J. Hörandel , L. V. E. Koopmans , G. Mann , G. Miley , H. Röttgering , B. W. Stappers , R. A. M. J. Wijers , S. Zaroubi , M. van den Akker , A. Alexov , J. Anderson , K. Anderson , A. van Ardenne , M. Arts , A. Asgekar , I. M. Avruch , F. Batejat , L. Bähren , M. E. Bell , M. R. Bell , I. van Bemmel , P. Bennema , M. J. Bentum , G. Bernardi , P. Best , L. Bîrzan , A. Bonafede , A. -J. Boonstra , R. Braun , J. Bregman , F. Breitling , R. H. van de Brink , J. Broderick , P. C. Broekema , W. N. Brouw , M. Brüggen , H. R. Butcher , W. van Cappellen , B. Ciardi , T. Coenen , J. Conway , A. Coolen , A. Corstanje , S. Damstra , O. Davies , A. T. Deller , R. -J. Dettmar , G. van Diepen , K. Dijkstra , P. Donker , A. Doorduin , J. Dromer , M. Drost , A. van Duin , J. Eislöffel , J. van Enst , C. Ferrari , W. Frieswijk , H. Gankema , M. A. Garrett , F. de Gasperin , M. Gerbers , E. de Geus , J. -M. Grießmeier , T. Grit , P. Gruppen , J. P. Hamaker , T. Hassall , M. Hoeft , H. Holties , A. Horneffer , A. van der Horst , A. van Houwelingen , A. Huijgen , M. Iacobelli , H. Intema , N. Jackson , V. Jelic , A. de Jong , E. Juette , D. Kant , A. Karastergiou , A. Koers , H. Kollen , V. I. Kondratiev , E. Kooistra , Y. Koopman , A. Koster , M. Kuniyoshi , M. Kramer , G. Kuper , P. Lambropoulos , C. Law , J. van Leeuwen , J. Lemaitre , M. Loose , P. Maat , G. Macario , S. Markoff , J. Masters , D. McKay-Bukowski , H. Meijering , H. Meulman , M. Mevius , E. Middelberg , R. Millenaar , J. C. A. Miller-Jones , R. N. Mohan , J. D. Mol , J. Morawietz , R. Morganti , D. D. Mulcahy , E. Mulder , H. Munk , L. Nieuwenhuis , R. van Nieuwpoort , J. E. Noordam , M. Norden , A. Noutsos , A. R. Offringa , H. Olofsson , A. Omar , E. Orrú , R. Overeem , H. Paas , M. Pandey-Pommier , V. N. Pandey , R. Pizzo , A. Polatidis , D. Rafferty , S. Rawlings , W. Reich , J. -P. de Reijer , J. Reitsma , A. Renting , P. Riemers , E. Rol , J. W. Romein , J. Roosjen , M. Ruiter , A. Scaife , K. van der Schaaf , B. Scheers , P. Schellart , A. Schoenmakers , G. Schoonderbeek , M. Serylak , A. Shulevski , J. Sluman , O. Smirnov , C. Sobey , H. Spreeuw , M. Steinmetz , C. G. M. Sterks , H. -J. Stiepel , K. Stuurwold , M. Tagger , Y. Tang , C. Tasse , I. Thomas , S. Thoudam , M. C. Toribio , B. van der Tol , O. Usov , M. van Veelen , A. -J. van der Veen , S. ter Veen , J. P. W. Verbiest , R. Vermeulen , N. Vermaas , C. Vocks , C. Vogt , M. de Vos , E. van der Wal , R. van Weeren , H. Weggemans , P. Weltevrede , S. White , S. J. Wijnholds , T. Wilhelmsson , O. Wucknitz , S. Yatawatta , P. Zarka , A. Zensus , J. van Zwieten

The Long Wavelength Array (LWA) will be a new multi-purpose radio telescope operating in the frequency range 10-88 MHz. Scientific programs include pulsars, supernova remnants, general transient searches, radio recombination lines, solar…

Instrumentation and Methods for Astrophysics · Physics 2012-06-11 G. B. Taylor , The LWA Collaboration

The Allen Telescope Array was used to monitor Mars between 9 March and 2 June 2010, over a total of approximately 30 hours, for radio emission indicative of electrostatic discharge. The search was motivated by the report from Ruf et al.…

The lunar surface is a compelling location for large, distributed optical facilities, with significant advantages over orbital facilities for high spatial resolution astrophysics. The serious development of mission concepts is timely…

The LOw Frequency ARray (LOFAR) is a next-generation radio telescope which uses thousands of stationary dipoles to observe celestial phenomena. These dipoles are grouped in various 'stations' which are centred on the Netherlands with…

Solar and Stellar Astrophysics · Physics 2019-08-13 Richard A. Fallows , Ashish Asgekar , Mario M Bisi , Andrew R. Breen , Sander ter Veen

Lunar Laser Ranging (LLR) measurements are crucial for advanced exploration of the evolutionary history of the lunar orbit, the laws of fundamental gravitational physics, selenophysics and geophysics as well as for future human missions to…

General Relativity and Quantum Cosmology · Physics 2009-02-23 Sergei Kopeikin

The Deep Space Network (DSN) enables NASA to communicate with its spacecraft in deep space. By virtue of its large antennas, the DSN can also be used as a powerful instrument for radio astronomy. Specifically, Deep Space Station (DSS) 43,…

Instrumentation and Methods for Astrophysics · Physics 2020-10-28 Kristen Virkler , Jonathon Kocz , Melissa Soriano , Shinji Horiuchi , Jorge L. Pineda , Tyrone McNichols

The Five-hundred-meter Aperture Spherical Radio Telescope (FAST) Core Array is a proposed extension of FAST, integrating 24 secondary 40-m antennas implanted within 5 km of the FAST site. This original array design will combine the…

Instrumentation and Methods for Astrophysics · Physics 2024-08-26 Peng Jiang , Rurong Chen , Hengqian Gan , Jinghai Sun , Boqin Zhu , Hui Li , Weiwei Zhu , Jingwen Wu , Xuelei Chen , Haiyan Zhang , Tao An

In the past few years, deep learning (DL) techniques have been introduced for designing sparse arrays. These methods offer the advantages of feature engineering and low prediction-stage complexity, which is helpful in tackling the…

Signal Processing · Electrical Eng. & Systems 2023-08-10 Kumar Vijay Mishra , Ahmet M. Elbir , Koichi Ichige

The Large European Array for Pulsars (LEAP) is a European Pulsar Timing Array project that combines the Lovell, Effelsberg, Nan\c{c}ay, Sardinia, and Westerbork radio telescopes into a single tied-array, and makes monthly observations of a…

High Energy Astrophysical Phenomena · Physics 2018-08-22 J. W. McKee , C. G. Bassa , S. Chen , M. Gaikwad , G. H. Janssen , R. Karuppusamy , M. Kramer , K. J. Lee , K. Liu , D. Perrodin , S. A. Sanidas , R. Smits , B. W. Stappers , L. Wang , W. W. Zhu

For wireless communications using linear large-scale antenna arrays, we define a receiving coordinate system and parameterization strategy to facilitate the study of the impact of three-dimensional position and rotation of the arrays on the…

Information Theory · Computer Science 2022-03-21 Liqin Ding , Erik G. Ström , Jiliang Zhang

LOFAR, the Low Frequency Array, is a next-generation radio telescope that is being built in Northern Europe and expected to be fully operational at the end of this decade. It will operate at frequencies from 15 to 240 MHz (corresponding to…

As space agencies are planning manned missions to reach Mars, researchers need to pave the way for supporting astronauts during their sojourn. This will also be achieved by providing broadband and low-latency connectivity through wireless…

Networking and Internet Architecture · Computer Science 2022-07-04 Stefano Bonafini , Claudio Sacchi , Riccardo Bassoli , Fabrizio Granelli , Koteswararao Kondepu , Frank H. P. Fitzek
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