Results 61 to 70 of about 20,006 (198)

National Radio Astronomy Observatory (NRAO) Image Gallery [PDF]

This image gallery presented by the National Radio Astronomy Observatory contains a large number of radio astronomy images and photographs of radio observatories. Each image is accompanied by descriptive text.

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The genesis of solar radio astronomy in Australia [PDF]

, 2006
In late 1945, O.B. Slee at RAAF Radar Station 59 near Darwin and staff from the CSIRO's Division of Radiophysics in Sydney were involved in Australia's first investigation of radio emission form the Sun.
Slee, Bruce, Orchiston, Wayne, Burman, Ron   +2 more
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ANALYSIS OF ACTIVE PHASED ANTENNA ARRAY PARAMETERS FOR THE GURT RADIO TELESCOPE

Radio Physics and Radio Astronomy, 2015
The calculation technique results of numerical analysis of parameters of active phased antenna array (APAA) of the Giant Ukrainian Radio Telescope (GURT) of decameter and meter wavelengths which is being built now nearby Kharkiv at the area of S.
P. L. Tokarsky, A. A. Konovalenko, S. N. Yerin   +2 more
doaj   +1 more source

RHINO: reconfigurable hardware interface for computation and radio [PDF]

, 2011
Field-programmable gate arrays, or FPGAs, provide an attractive computing platform for software-defined radio applications. Their reconfigurable nature allows many digital signal processing (DSP) algorithms to be highly parallelised within the FPGA ...
Scott, Simon
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Tools of radio astronomy [PDF]

, 2009
The recent years have seen breathtaking progress in technology, especially in the receiver and digital technologies relevant for radio astronomy, which has at the same time advanced to shorter wavelengths.
Rohlfs, Kristen, Wilson, Thomas L, Hüttemeister, Susanne   +2 more
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DECAMETER PULSARS AND TRANSIENTS SURVEY OF THE NORTHERN SKY. STATUS, FIRST RESULTS, MULTIPARAMETRIC PIPELINE FOR CANDIDATE SELECTION

Odessa Astronomical Publications, 2016
We present the results of processing first 20% of Northern sky pulsars and transients survey using UTR-2 radio telescope. Data processing is done by an automatic pipeline that detects and outputs a large number of transient candidates (usually dispersed ...
V. V. Zakharenko, I. P. Kravtsov, I. Y. Vasylieva, S. S. Mykhailova, O. M. Ulyanov, A. I. Shevtsova, A. O. Skoryk, P. Zarka, O. O. Konovalenko   +8 more
doaj   +1 more source

Rapid tactical deployment capability of a transportable optical ground station

Scientific Reports
In this paper we present TeraNet-3 (TN-3), a transportable optical ground station (TOGS) comprising the third node of the TeraNet optical ground station network in development by the University of Western Australia (UWA).
Ayden McCann, Shane Walsh, Nicolas Maron, David Gozzard, Shawn McSorley, Sascha Schediwy   +5 more
doaj   +1 more source

Full-Stokes, Multi-Frequency Radio Polarimetry of Fermi Blazars; Monitoring and Modelling

Galaxies, 2017
The polarised emission from active galactic nuclei (AGN) jets carries information about the physical conditions at the emitting plasma elements, while its temporal evolution probes the physical processes that introduce variability and dynamically modify ...
Emmanouil Angelakis, Ioannis Myserlis, J. Anton Zensus   +2 more
doaj   +1 more source

Atmospheric Cerenkov astronomy of cataclysmic variables & other potential gamma ray sources [PDF]

, 1993
Recent developments in the application of the atmospheric Cerenkov technique to 7-ray astronomy are reviewed here. These include new methods of signal to noise enhancement and the increasing diversity of stellar systems positively identified as Very High
Bradbury, S.M, Bradbury, Stella Marie
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Direction-dependent calibration with image-domain gridding

Astronomy & Astrophysics
Aims. Wide-field images made by radio interferometers are invariably affected by direction-dependent systematic effects such as the ionosphere or the beam pattern.
van der Tol Sebastiaan, Yatawatta Sarod, Veenboer Bram, Rafferty David   +3 more
doaj   +1 more source