Results 31 to 40 of about 1,058,127 (374)

Industrial interference and radio astronomy [PDF]

open access: yesAdvances in Radio Science, 2013
The interferer – victim scenario is described for the case of industrial interference affecting radio astronomical observatories. The sensitivity of radio astronomical receivers and their interference limits are outlined.
A. Jessner
doaj   +1 more source

Polygon “Simeiz-Katsively” - fluctuations in the local deformations and insolation the Earth's surface [PDF]

open access: yesITM Web of Conferences, 2019
Discovered the effects of regular solar and geodynamic fluctuations in satellite data on the insolation falling on the earth's surface at the point of the Kara-Dag for the period 1983.5 in 2005.5 years.
Volvach Larisa   +3 more
doaj   +1 more source

Big Data Research Infrastructure Collaboration Toward the SKA (BRICSKA)

open access: yesAnais da Academia Brasileira de Ciências, 2021
Astronomy is entering an era of mega-data that will render conventional research methods as well as data and visual analytics tools ineffective. The Square Kilometre Array (SKA) drives one of the most significant big data challenges of the next decades ...
RUSS TAYLOR   +4 more
doaj   +1 more source

A Design Study of 100GHz Band Local Oscillator System by Using Yig Oscillator [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2003
In this paper, we make a design study for a local oscillator system of the 100 GHz band cosmic radio receiving system. We use the YIG oscillator with digital driver which is the main oscillator. This oscillator has a good frequency and phase stability at
Changhoon Lee   +6 more
doaj   +1 more source

Sparse Image Reconstruction for the SPIDER Optical Interferometric Telescope

open access: yes, 2021
The concept of a recently proposed small-scale interferometric optical imaging device, an instrument known as the Segmented Planar Imaging Detector for Electro-optical Reconnaissance (SPIDER), is of great interest for its possible applications in ...
McEwen, Jason D., Pratley, Luke
core   +1 more source

The Measurement of Polarization in Radio Astronomy [PDF]

open access: yesThe WSPC Handbook of Astronomical Instrumentation, 2018
Modern dual-polarization receivers allow a radio telescope to characterize the full polarization state of incoming insterstellar radio waves. Many astronomers incorrectly consider a polarimeter to be the "backend" of the telescope.
T. Robishaw, C. Heiles
semanticscholar   +1 more source

TRACKING TYPE III RADIO BURST SOURCES IN THE SOLAR CORONA BY HELIOGRAPHIC MEANS

open access: yesOdessa Astronomical Publications, 2014
We present the preliminary results of heliographic measurements of solar  type  III  radio  bursts  in  the lowfrequency range (16.5-33 MHz) using  the UTR-2  radio heliograph.
A. A. Koval   +3 more
doaj   +1 more source

Progress with implementing the new research data management system at HartRAO

open access: yesEPJ Web of Conferences, 2018
The Hartebeesthoek Radio Astronomy Observatory (HartRAO) participates in global radio astronomy and fundamental astronomy (space geodesy) research activities.
Coetzer Glenda   +2 more
doaj   +1 more source

РАЗВИТИЕ ТЕЛЕКОММУНИКАЦИЙ ПРАО АКЦ ФИАН

open access: yesOdessa Astronomical Publications, 2011
The new modern and reliable data storage system was acquired in 2010 in order to develop internal telecommunication resources of the Observatory. The system is designed for store large amounts of observation data obtained from the three radio-astronomy ...
Е. А. Исаев   +5 more
doaj   +1 more source

Long-distance telecom-fiber transfer of a radio-frequency reference for radio astronomy

open access: yes, 2018
Very-long-baseline interferometry (VLBI) for high-resolution astronomical imaging requires phase-stable frequency references at widely separated radio-telescope antennas.
Yabai He   +14 more
semanticscholar   +1 more source

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