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Ionospheric tomography using ADS‐B signals
Author(s) -
Cushley A. C.,
Noël J.M.
Publication year - 2014
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 - 10.1002/2013rs005354
Subject(s) - tec , total electron content , ionosphere , tomography , algebraic reconstruction technique , geology , faraday effect , ray tracing (physics) , polarization (electrochemistry) , electron density , transmitter , remote sensing , physics , optics , geodesy , computer science , geophysics , electron , telecommunications , channel (broadcasting) , chemistry , quantum mechanics , magnetic field
Numerical modeling has demonstrated that Automatic Dependent Surveillance Broadcast (ADS‐B) signals can be used to reconstruct two‐dimensional (2‐D) electron density maps of the ionosphere using techniques for computerized tomography. Ray tracing techniques were used to determine the characteristics of individual waves, including the wave path and the state of polarization at the satellite receiver. The modeled Faraday rotation was computed and converted to total electron content (TEC) along the raypaths. The resulting TEC was used as input for computerized ionospheric tomography (CIT) using algebraic reconstruction technique. This study concentrated on reconstructing mesoscale structures 25–100 km in horizontal extent. The primary scientific interest of this study was to show that ADS‐B signals can be used as a new source of data for CIT to image the ionosphere and to obtain a better understanding of magneto‐ionic wave propagation.