Master Thesis Online
Étude des échos de tête associés aux bolides au moyen des observations FRIPON et BRAMS
Gerlache, Arthur 
Promotor(s) :
Lamy, Hervé
;
Jehin, Emmanuel
Date of defense : 3-Sep-2025/5-Sep-2025 • Permalink : http://hdl.handle.net/2268.2/23873
Thesis mk3.pdfDetails
| Title : | Étude des échos de tête associés aux bolides au moyen des observations FRIPON et BRAMS |
| Translated title : | [en] Study of head echoes associated to fireballs using FRIPON and BRAMS networks |
| Author : | Gerlache, Arthur
|
| Date of defense : | 3-Sep-2025/5-Sep-2025 |
| Advisor(s) : | Lamy, Hervé
Jehin, Emmanuel
|
| Committee's member(s) : | Hubert, Benoît
Colas, François Bariselli, Federico |
| Language : | French |
| Number of pages : | 78 |
| Keywords : | [en] Meteors [en] BRAMS [en] FRIPON [en] Signal analysis [en] Fireball |
| Discipline(s) : | Physical, chemical, mathematical & earth Sciences > Space science, astronomy & astrophysics |
| Research unit : | Institut royal d’Aéronomie Spatiale de Belgique |
| Name of the research project : | BRAMS |
| Target public : | Professionals of domain Student |
| Institution(s) : | Université de Liège, Liège, Belgique |
| Degree: | Master en sciences spatiales, à finalité approfondie |
| Faculty: | Master thesis of the Faculté des Sciences |
Abstract
[en] In this paper, we study head echoes in BRAMS data, investigate their visibility and explore how they can be used in order to determine the velocity of a fireball using FRIPON trajectory data. These objectives were achieved by using the PyBRAMS library, which was partially modified in this work. In addition, new code was developed to implement a new method using spectrogram image analysis. Specular reflexion points were employed to explain the visibility of head echoes. Predicted fireball velocities show good agreement with the information available from the FRIPON optical observations.
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