Enhanced Meteoroid Trajectory and Speed Reconstruction Using a Forward Scatter Radio Network: Pre‐t0 ${t}_{0}$ Phase Technique and Uncertainty Analysis - 2025
Enhanced Meteoroid Trajectory and Speed Reconstruction Using a Forward Scatter Radio Network: Pre‐t0 ${t}_{0}$ Phase Technique and Uncertainty Analysis
meteoroids; forward scatter; trajectory reconstruction; uncertainty quantification; markov chain monte carlo
Résumé :
[en] This study presents an enhanced method for reconstructing meteoroid trajectories and speeds using the Belgian RAdio Meteor Stations forward scatter radio network. A novel extension of the pre‐ phase technique, originally developed for backscatter radars, has been adapted for forward scatter continuous wave systems. This method leverages phase data recorded before the meteoroid reaches the specular reflection point to improve speed estimations. Additionally, we combine this newly determined pre‐ speed information with time of flight measurements into the trajectory solver to reduce uncertainties in meteoroid path and speed reconstructions. A Markov Chain Monte Carlo method is employed to propagate measurement uncertainties to the trajectory parameters. The reconstructed trajectories and speeds are validated against optical data from the CAMS‐BeNeLux network. The results show significant improvements in the accuracy and robustness of speed and inclination determination.
Disciplines :
Aérospatiale, astronomie & astrophysique
Auteur, co-auteur :
Balis, Joachim ; Université de Liège - ULiège > Unités de recherche interfacultaires > Space sciences, Technologies and Astrophysics Research (STAR) ; Royal Belgian Institute for Space Aeronomy Brussels Belgium
Lamy, Hervé ; Université de Liège - ULiège > Département d'astrophysique, géophysique et océanographie (AGO) > COMets METeors and Asteroids (COMETA) ; Royal Belgian Institute for Space Aeronomy Brussels Belgium
Anciaux, Michel ; Royal Belgian Institute for Space Aeronomy Brussels Belgium
Jehin, Emmanuel ; Université de Liège - ULiège > Unités de recherche interfacultaires > Space sciences, Technologies and Astrophysics Research (STAR)
De Keyser, Johan ; Royal Belgian Institute for Space Aeronomy Brussels Belgium
Kastinen, Daniel ; Swedish Institute of Space Physics (IRF) Kiruna Sweden
Brown, Peter G.; Department of Physics and Astronomy Western University London ON Canada ; Institute for Earth and Space Exploration Western University London ON Canada
Langue du document :
Anglais
Titre :
Enhanced Meteoroid Trajectory and Speed Reconstruction Using a Forward Scatter Radio Network: Pre‐t0 ${t}_{0}$ Phase Technique and Uncertainty Analysis
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