Results 21 to 30 of about 1,058,127 (374)

Demonstration of 100 Gbps coherent free-space optical communications at LEO tracking rates

open access: yesScientific Reports, 2022
Free-space optical communications are poised to alleviate the data-flow bottleneck experienced by spacecraft as traditional radio frequencies reach their practical limit. While enabling orders-of-magnitude gains in data rates, optical signals impose much
Shane M. Walsh   +7 more
doaj   +1 more source

РАЗВИТИЕ РАДИОАСТРОНОМИЧЕСКОГО ЦЕНТРА ДАННЫХ (RADC) НА ПРАО АКЦ ФИАН

open access: yesOdessa Astronomical Publications, 2011
The Radio Astronomy Data Center (RADC) are developed at PRAO ASC LPI in last some years. It consists from: a) the database of most important for radio astronomers astronomical catalogs; b) the database of observational data of Pushchino Radio Astronomy ...
В. А. Самодуров   +7 more
doaj   +1 more source

Polygon “Simeiz-Katsively” - changes in the average pole of the Earth and the geomagnetic field over the last century [PDF]

open access: yesITM Web of Conferences, 2019
The character of changing the trajectory of the middle of the North geographical pole of the Earth's surface over the last century is studied. The peculiarities in the changes of its coordinates are established.
Volvach Larisa   +3 more
doaj   +1 more source

40. Radio Astronomy (Radio Astronomie) [PDF]

open access: yesTransactions of the International Astronomical Union, 1991
The following commission members have contributed to this report:W.J. Altenhoff, H. Andernach, J. Baars, R. Chini, R.J. Cohen, J.J. Condon, Y. Fukui, R. Güsten, J.M. van der Hulst, C. Henkel, W. Huchtmeier, M. Ishiguro, T. Krichbaum, M, Kundu, A. Lazenby, W. Reich, P. Roelfsema, S.E. Thorsett, R. Tuffs, CM. Walmsley, H. Wendker, R.
openaire   +1 more source

After the SKA - Radio Astronomy in 2049 [PDF]

open access: yes, 2012
The concept of a Square Kilometre Array was developed to ensure that progress in Radio Astronomy in the early 21st Century continued at the same impressive pace as was achieved during the first 50 years. The SKA telescope is designed to pave that road to
Harvey-Smith, Lisa
core   +1 more source

THE DAILY 110 MHZ SURVEY (BSA FIAN) IN THE ON-LINE MODE: DATABASE AND PROCESSING ETHODS

open access: yesOdessa Astronomical Publications, 2014
From 2012 on radio telescope BSA FIAN multi beams diagram was started. It capable at July 2014 daily observing by 96   beams in declination -8  .. 42 degrees in the frequency band 109-111.5 MHz.
V. A. Samodurov   +5 more
doaj   +1 more source

Polygon “Simeiz-Katsively” - the cycles in the climatic and the geophysical characteristics of the Crimea [PDF]

open access: yesITM Web of Conferences, 2019
Coherent variations are established with periods of about 10–12 years and 60–70 years, which are found in processes of different physical nature and can be attributed to global cycles in the solar system, the manifestation of which in climatic and ...
Volvach Alexander   +3 more
doaj   +1 more source

HIGH-FREQUENCY CUTOFF IN TYPE III BURSTS

open access: yesOdessa Astronomical Publications, 2016
In this article we report about a group of solar bursts with high-frequency cutoff, observed on 19 August of 2012 near 8:23 UT, simultaneously by three different radio telescopes: the Ukrainian decameter radio telescope (8-33 MHz), the French Nançay ...
A. A. Stanislavsky   +3 more
doaj   +1 more source

Interferometry And Synthesis In Radio Astronomy

open access: yes, 2016
Thank you for reading interferometry and synthesis in radio astronomy. As you may know, people have look numerous times for their favorite novels like this interferometry and synthesis in radio astronomy, but end up in malicious downloads.

semanticscholar   +1 more source

THE UNIVERSE RADIO EMISSION AT DECAMETER WAVELENGTHS (by the materials of a series of works awarded by the State Prize of Ukraine in the field of science and technology in 2018)

open access: yesRadio Physics and Radio Astronomy, 2019
Purpose: The abstract presentation and review of the works of the last 40 years in the field of low-frequency radio astronomy and a summary of their main scientific and technical results, which have been awarded the State Prize of Ukraine in the field of
O. O. Konovalenko   +7 more
doaj   +1 more source

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