Results 1 to 10 of about 9,733 (158)
On the efficiency of techniques for the reduction of impulsive noise in astronomical images [PDF]
Monthly Notices of the Royal Astronomical Society, 2016 The impulsive noise in astronomical images originates from various sources. It develops as a result of thermal generation in pixels, collision of cosmic rays with image sensor or may be induced by high readout voltage in Electron Multiplying CCD (EMCCD).
Tomasz Blachowicz +2 more
exaly +4 more sources
Some Astronomical Applications of Cross-Correlation Techniques. [PDF]
The Astrophysical Journal, 1965 Cross-correlation techniques have been used for many years to increase the signal-to-noise ratio of a wide variety of analogue and digital data. A large literature describing these methods exists, and many clever applications have been developed (see Fellgett 1953, and esp. Woodward 1955, for a basic mathematical development and applications).
Westphal, J. A.
openaire +4 more sources
Revitalizing Astronomical Azimuth Determination: Integrating Modern Computing with Traditional Techniques. [PDF]
Sensors (Basel)It is not widely recognized today that astronomical methods for azimuth determination continue to rank among the most accurate techniques for establishing orientation.
Barazzetti L.
europepmc +3 more sources
A Technology for Deblurring Astronomical Images [PDF]
, 2022 This paper focuses on a specific technology for deblurring astronomical images. Data are collected as digital matrices of image pixels. The technology reconstructs the object via computational manipulation of the blurred image.
Tidrick, Thomas H
core +2 more sources
Astronomical Seeing and Meteorological Parameters at Maidanak Observatory [PDF]
, 2023 In this article, we present the results of astronomical seeing measurements conducted at the Maidanak observatory and the influence of meteorological parameters on astronomical seeing.
Shuhrat Ehgamberdiev +3 more
core +1 more source
Astronomical site selection for Turkey using GIS techniques [PDF]
Experimental Astronomy, 2015 A site selection of potential observatory locations in Turkey have been carried out by using Multi-Criteria Decision Analysis (MCDA) coupled with Geographical Information Systems (GIS) and satellite imagery which in turn reduced cost and time and increased the accuracy of the final outcome. The layers of cloud cover, digital elevation model, artificial
Aksaker, N. +14 more
openaire +7 more sources
Efficient Lossless Compression of Integer Astronomical Data [PDF]
, 2023 Each new generation of telescope produces increasingly larger astronomical data volumes, which are expected to reach the order of exabytes in the next decade.
Bartrina Rapesta, Joan +3 more
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Parametric High Resolution Techniques for Radio Astronomical Imaging [PDF]
IEEE Journal of Selected Topics in Signal Processing, 2008 The increased sensitivity of future radio telescopes will result in requirements for higher dynamic range within the image as well as better resolution and immunity to interference. In this paper we propose a new matrix formulation of the imaging equation in the cases of non co-planar arrays and polarimetric measurements. Then we improve our parametric
Chen Ben-David, Amir Leshem
openaire +2 more sources
Query driven visualization of astronomical catalogs [PDF]
, 2011 Interactive visualization of astronomical catalogs requires novel techniques due to the huge volumes and complex structure of the data produced by existing and upcoming astronomical surveys.
Hugo Buddelmeijer +6 more
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Fibre Bragg gratings for high spectral and temporal resolution astronomical observations [PDF]
, 2012 Dynamic spectral analysis of astronomical events has the potential to deliver the information needed to clarify or complete important theoretical descriptions of astronomical phenomena. There is currently a lack of detailed sub-minute observations due to
Jovanović, Nemanja +7 more
core +1 more source