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A new VLF/LF atmospheric noise model
Author(s) -
Fieve S.,
Portala P.,
Bertel L.
Publication year - 2007
Publication title -
radio science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.371
H-Index - 84
eISSN - 1944-799X
pISSN - 0048-6604
DOI - 10.1029/2006rs003513
Subject(s) - atmospheric noise , lightning (connector) , noise (video) , meteorology , range (aeronautics) , environmental science , remote sensing , satellite , very low frequency , standard deviation , telecommunications , computer science , geology , geography , physics , statistics , mathematics , engineering , aerospace engineering , artificial intelligence , image (mathematics) , power (physics) , quantum mechanics
Atmospheric noise, originating essentially from lightning discharges, is the main disturbance of VLF/LF telecommunications. This paper characterizes atmospheric noise in the 10–80 kHz range and proposes a new model: very accurate low‐frequency noise model (VALERIE). This model uses a new approach, which combines noise measurements with lightning data. The noise statistics were obtained from several years of measurements taken by the Délégation Générale de l'Armement (DGA)/Centre Technique des Systèmes Naval (CTSN) (Toulon, France) and the Space and Naval Warfare Systems (SPAWAR) (San Diego, California). Lightning data were provided by recent satellite observations made by NASA. A comparison of VALERIE predictions with measurements by cross validation showed an increase in accuracy compared to the current International Telecommunication Union (Geneva) model and a decreased average deviation. The model has been validated for the Atlantic area but may be extended as new measurements are collected.