Articles with "noise absorption" as a keyword



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Noise level forecasts at 8–20 MHz and their use for morphological studies of ionospheric absorption variations at EKB ISTP SB RAS radar

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Published in 2020 at "Advances in Space Research"

DOI: 10.1016/j.asr.2020.04.005

Abstract: Abstract In this paper, a method is described for using 8–20 MHz noise absorption effect for real time detecting radio wave absorption periods. The method is based on two empirical autoregression models of noise variations. The… read more here.

Keywords: absorption incidents; model; noise absorption; noise ... See more keywords
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Superresolution concentration measurement realized by sub-shot-noise absorption spectroscopy

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Published in 2022 at "Nature Communications"

DOI: 10.1038/s41467-022-28617-w

Abstract: Absorption spectroscopy is one of the most widely used spectroscopic methods. The signal-to-noise ratio in conventional absorption spectroscopy is ultimately limited by the shot noise, which arises from the statistical property of the light used… read more here.

Keywords: absorption spectroscopy; spectroscopy; shot noise; noise absorption ... See more keywords
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Cosmic noise absorption signature of particle precipitation during ICME sheaths and ejecta

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Published in 2019 at "Annales Geophysicae"

DOI: 10.5194/angeo-2019-151

Abstract: Abstract. We study here energetic (E > 30 keV) electron precipitation using cosmic noise absorption (CNA) during the sheath and ejecta structures of 61 interplanetary coronal mass ejections (ICMEs) observed in the near-Earth solar wind between 1997 and… read more here.

Keywords: sheaths ejecta; enhanced cna; noise absorption; precipitation ... See more keywords