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Radar CONSERT pour la mission Rosetta : calibration de l'instrument

Abstract : The Comet Nucleus Sounding Experiment by Radio-wave Transmission (CONSERT / Rosetta) was designed to scan the interior of the comet 67P / Churyumov-Gerasimenko. This instrument consists of two parts:one on board of Rosetta and the other on board of Philae. The data available from operational and calibration tests allowed a end-to-end calibration of the instrument. This calibration enabled to correct the amplitude imbalance at 5%, of the output power and to build a compensation law for the different models of flight and recharging. This increased the precession of the AGC and gain systemand finally we estimated the delay generated by the filters and electronics system for the different models. The results obtained on the calibration of the data on each model will consequently reduce the estimation errors.Finally, the calibration of CONSER contributed significantly to improve the measurements made during the landing of the Philae on the comet.
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https://tel.archives-ouvertes.fr/tel-01792326
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Submitted on : Tuesday, May 15, 2018 - 1:22:11 PM
Last modification on : Wednesday, October 7, 2020 - 1:15:20 PM
Long-term archiving on: : Tuesday, September 25, 2018 - 10:19:09 AM

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MAIGA_2017_diffusion.pdf
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  • HAL Id : tel-01792326, version 1

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Moussa Djibrilla Maiga. Radar CONSERT pour la mission Rosetta : calibration de l'instrument. Instrumentation et méthodes pour l'astrophysique [astro-ph.IM]. Université des sciences, des techniques et des technologies de Bamako (Mali), 2017. Français. ⟨NNT : 2017GREAY077⟩. ⟨tel-01792326⟩

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