Improved meteoroid trajectory and speed reconstruction with BRAMS: pre-t0 phase... ( IMC 2025 ) скачать в хорошем качестве

Improved meteoroid trajectory and speed reconstruction with BRAMS: pre-t0 phase... ( IMC 2025 )

Joachim Balis, Herve Lamy, Michel Anciaux, Emmanuel Jehin, Johan De Keyser, Daniel Kastinen, Peter G. Brown This study presents a significant advancement in reconstructing meteoroid trajectories and speeds using the Belgian RAdio Meteor Stations (BRAMS) forward scatter radio network. We introduce an improved method based on a novel extension of the pre-t0 phase technique, initially developed for backscatter radars, and adapt it for continuous wave forward scatter systems. This approach leverages phase information recorded before the meteoroid reaches the specular reflection point t0 to enhance speed estimations. Furthermore, we combine this newly determined pre-t0 speed with time of- flight measurements to reduce uncertainties in the reconstructed meteoroid paths and velocities. The robustness of our method is assessed using Markov Chain Monte Carlo techniques and validated against optical observations from the CAMS-BeNeLux network. https://imc2025.imo.net/program/