Case study of radio emission beam associated to very low frequency signal recorded onboard CSES satellite
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Published:2023-03-21
Issue:
Volume:20
Page:77-84
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ISSN:1684-9973
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Container-title:Advances in Radio Science
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language:en
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Short-container-title:Adv. Radio Sci.
Author:
Boudjada Mohammed Y.ORCID, Eichelberger Hans U., Al-Haddad Emad, Magnes WernerORCID, Galopeau Patrick H. M.ORCID, Zhang Xuemin, Pollinger AndreasORCID, Lammer Helmut
Abstract
Abstract. We report on the variation of electric power density
linked to very low frequency (VLF) signal observed during the minimum of
solar cycle 25. The detected VLF signal is emitted by the NWC radio station
localized in the southern hemisphere, at 21.5∘ S and
114.2∘ E. We attempt in this work to quantify the beam as detected
by the Electric Field Detector (EFD) instrument onboard CSES satellite.
Geometrical key parameters have been considered to analysis the variation of the power density taking into consideration the distance between the
satellite trajectory and the NWC station and its conjugate region. The beam
behavior is found to be subject to significant disturbances in the conjugate
region with the presence of signal modulations. Above the NWC transmitter
station, the beam can be considered as a hollow cone but with irregularity
dependence on the electric power density.
Publisher
Copernicus GmbH
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