Results 31 to 40 of about 36,135 (283)
A self-calibration approach for optical long baseline interferometry imaging
, 2008 Current optical interferometers are affected by unknown turbulent phases on each telescope. In the field of radio-interferometry, the self-calibration technique is a powerful tool to process interferometric data with missing phase information. This paper
Benson +20 more
core +1 more source
Galaxies, 2021 I offer a brief and personal history of the development of polarization sensitive observations with widely separated antennas. The story starts at Jodrell Bank in the late 1960s with a 24 km baseline radio linked (but not phase stable) interferometer and
John Wardle
doaj +1 more source
inTrack: High Precision Tracking of Mobile Sensor Nodes [PDF]
, 2007 Radio-interferometric ranging is a novel technique that allows for fine-grained node localization in networks of inexpensive COTS nodes. In this paper, we show that the approach can also be applied to precision tracking of mobile sensor nodes.
A. Lédeczi +8 more
core +1 more source
An Updated View of the Milky Way from Maser Astrometry
Universe, 2022 Astrometric observations of maser sources in the Milky Way, using the Very Long Baseline Interferometry (VLBI) technique, have been exploited to determine the spiral structure of our Galaxy. Several major spiral arms have now been pinpointed in the first
Katharina Immer, Kazi L. J. Rygl
doaj +1 more source
Deep learning-based imaging in radio interferometry
Astronomy & Astrophysics, 2022 Context.The sparse layouts of radio interferometers result in an incomplete sampling of the sky in Fourier space which leads to artifacts in the reconstructed images. Cleaning these systematic effects is essential for the scientific use of radiointerferometric images.Aims.Established reconstruction methods are often time-consuming, require expert ...
K. Schmidt +7 more
openaire +2 more sources
Sensors, 2022 Radio localization and radio positioning are relevant research fields for many telecommunications technologies. Usually, the solutions proposed by the literature rely on adaptive techniques related to some parameters that can be extracted from the ...
Antonello Florio +2 more
doaj +1 more source
, 2013 This paper reports very-long-baseline interferometry observations of the radio-loud broad absorption line (BAL) quasar J1020+4320 at 1.7, 2.3, 6.7, and 8.4 GHz using the Japanese VLBI network (JVN) and European VLBI network (EVN). The radio morphology is
Asada, Keiichi +16 more
core +1 more source
Stellar Intensity Interferometry: Astrophysical targets for sub-milliarcsecond imaging [PDF]
, 2010 Intensity interferometry permits very long optical baselines and the observation of sub-milliarcsecond structures. Using planned kilometric arrays of air Cherenkov telescopes at short wavelengths, intensity interferometry may increase the spatial ...
Dravins, Dainis +3 more
core +1 more source
Advanced Functional Materials, EarlyView.This work discusses the use of blended channel materials in OECTs. It explores how mixing glycolated and alkoxylated polymers in various ratios offers a simpler and more efficient route to tuning OECT properties. The performance of the polymer blends is compared to the corresponding copolymers, demonstrating similar OECT characteristics, swelling ...
Lize Bynens +14 more
wiley +1 more source
Intensity interferometry with more than two detectors? [PDF]
, 2013 The original intensity interferometers were instruments built in the 1950s and 60s by Hanbury Brown and collaborators, achieving milli-arcsec resolutions in visible light without optical-quality mirrors.
Malvimat, Vinay +2 more
core +1 more source