7 results on '"Bechini, Michele"'
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2. Robust spacecraft relative pose estimation via CNN-aided line segments detection in monocular images
- Author
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Bechini, Michele, Gu, Geonmo, Lunghi, Paolo, and Lavagna, Michèle
- Published
- 2024
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3. Dataset generation and validation for spacecraft pose estimation via monocular images processing
- Author
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Bechini, Michele, Lavagna, Michèle, and Lunghi, Paolo
- Published
- 2023
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4. Modeling and Control of an Electrically Actuated Spacecraft in a Plasma Field
- Author
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Lavagna, Michele, Bechini, Michele, and Quadrelli, Marco
- Abstract
UNKNOWN
- Published
- 2020
5. Modeling and Control of an Electrically Actuated Spacecraft in a Plasma Field
- Author
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Quadrelli, Marco, Bechini, Michele, and Lavagna, Michele
- Published
- 2020
6. Hovering of an Electrically Actuated Spacecraft in a Small-Body Plasma Field.
- Author
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Bechini, Michele, Quadrelli, Marco B., Lavagna, Michèle, and Wang, Joseph J.
- Abstract
This paper presents simulation models and an analysis of the hovering capability of an electrostatic spacecraft around a small celestial body. The hovering capabilities of an electrically actuated spacecraft are evaluated by combining orbital dynamics analysis with 3-D fully kinetic particle-in-cell simulations of asteroid/spacecraft interactions with the solar-wind plasma. The zero-velocity curves obtained from the analysis allow the identification of the equilibrium points for different levels of charge. The analysis of the system equilibria indicates the presence of equilibrium points in the combined gravitational, electrostatic, and solar illumination fields, most of which can be obtained by charging the spacecraft negatively. The charge-to-mass ratio needed to hover is obtained for different orbital positions, and an analysis of the sensitivity of the equilibria with respect to the spacecraft equivalent radius and with respect to the sun-to-main-body distance provides additional insight into the system dynamics. [ABSTRACT FROM AUTHOR]
- Published
- 2021
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7. GrailQuest and HERMES: hunting for gravitational wave electromagnetic counterparts and probing space-time quantum foam
- Author
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F. Scala, Silvia Piranomonte, Yupeng Xu, Piero Malcovati, Samuel Pliego-Caballero, Angelo Francesco Gambino, Chiara Ferruglio, Fabrizio Fiore, M. Rapisarda, Giovanni Della Casa, G. Zanotti, Andrea Vacchi, Stefano Silvestrini, Lorenzo Amati, Simone Pirrotta, Giuseppe Bertuccio, Alessandro Maselli, András Pál, M. Fiorini, Salvatore Capozziello, D. Milankovich, Mile Karlica, Irina Rashevskaya, A. Anitra, Marco Grassi, Barbara Negri, Filippo Frontera, Margherita Piccinin, Alexander Rashevsky, Daniele Ottolina, Simonetta Puccetti, N. Zampa, Claudio Labanti, A. Guzmán, Borja Lopez Fernandez, Luciano Burderi, E. Demenev, Ugo Lo Cicero, G. Dilillo, C. Guidorzi, Andrea Santangelo, P. Nogara, Giovanni La Rosa, A. Pasquale, Masanori Ohno, Marco Barbera, Roberto Bertaccin, Alessandro Riggio, Norbert Werner, Melania Del Santo, Raffaele Piazzolla, Jakub Ripa, F. Mele, Filippo Ambrosino, Massimo Della Valle, Michele Bechini, Ivan Troisi, J. Prinetto, Tian-Xiang Chen, Marco Feroci, Jiewei Cao, C. Tenzer, Lingjun Wang, M. Citossi, Giancarlo Ghirlanda, Lara Nava, Pierluigi Bellutti, David Selcan, Francesco Russo, A. Monge, Pavel Efremov, Silvia Zane, F. Ceraudo, Uros Kostic, Giuseppe Sottile, Andrea Sanna, Fabrizio Ferrandi, M. Perri, A. Gomboc, R. Iaria, G. Sciarrone, Marco Cinelli, Y. Evangelista, Giuseppe Pucacco, Na Gao, Tiziana Di Salvo, M. Gandola, Tomaz Rotovnik, Enrico Costa, Dejan Gacnik, Gábor Galgóczi, Gianluigi Zampa, Mariafelicia De Laurentis, Paolo Lunghi, Michele Fiorito, Arianna Manca, Riccardo Campana, F. Fuschino, Andrea Colagrossi, Aurora Clerici, S. Curzel, Alessandro Papitto, Fabrizio Amarilli, E. Virgilli, Gianluca Morgante, Giovanni Amelino-Camelia, Burderi, Luciano, Di Salvo, Tiziana, Riggio, Alessandro, Gambino, Angelo Francesco, Sanna, Andrea, Fiore, Fabrizio, Amarilli, Fabrizio, Amati, Lorenzo, Ambrosino, Filippo, Amelino-Camelia, Giovanni, Anitra, Alessio, Barbera, Marco, Bechini, Michele, Bellutti, Paolo, Bertaccin, Roberto, Bertuccio, Giuseppe, Campana, Riccardo, Cao, Jiewei, Capozziello, Salvatore, Ceraudo, Francesco, Chen, Tianxiang, Cinelli, Marco, Citossi, Marco, Clerici, Aurora, Colagrossi, Andrea, Costa, Enrico, Curzel, Serena, De Laurentis, Mariafelicia, Della Casa, Giovanni, Della Valle, Massimo, Demenev, Evgeny, Del Santo, Melania, Dilillo, Giuseppe, Efremov, Pavel, Evangelista, Yuri, Feroci, Marco, Ferruglio, Chiara, Ferrandi, Fabrizio, Fiorini, Mauro, Fiorito, Michele, Frontera, Filippo, Fuschino, Fabio, Gacnik, Dejan, Galgoczi, Gabor, Gao, Na, Gandola, Massimo, Ghirlanda, Giancarlo, Gamboc, Andreja, Grassi, Marco, Guidorzi, Cristiano, Guzman, Alejandro, Iaria, Rosario, Karlica, Mile, Kostic, Uro, Labanti, Claudio, La Rosa, Giovanni, Lo Cicero, Ugo, Lopez Fernandez, Borja, Lunghi, Paolo, Malcovati, Piero, Maselli, Alessandro, Manca, Arianna, Mele, Filippo, Milankovich, Dorottya, Monge, Angel, Morgante, Gianluca, Nava, Lara, Negri, Barbara, Nogara, Paolo, Ohno, Masanori, Ottolina, Daniele, Pasquale, Andrea, Pal, Andra, Perri, Matteo, Piccinin, Margherita, Piazzolla, Raffaele, Pirrotta, Simone, Pliego-Caballero, Samuel, Prinetto, Jacopo, Pucacco, Giuseppe, Puccetti, Simonetta, Rapisarda, Massimo, Rashevskaya, Irina, Rashevsky, Alexander, Ripa, Jakub, Russo, Francesco, Papitto, Alessandro, Piranomonte, Silvia, Santangelo, Andrea, Scala, Francesca, Sciarrone, Giulia, Selcan, David, Silvestrini, Stefano, Sottile, Giuseppe, Rotovnik, Tomaz, Tenzer, Christoph, Troisi, Ivan, Vacchi, Andrea, Virgilli, Enrico, Werner, Norbert, Wang, Lingjun, Xu, Yupeng, Zampa, Gianluigi, Zampa, Nicola, Zane, Silvia, Zanotti, Giovanni, ITA, GBR, DEU, ESP, CZE, CHN, SVN, HUN, den Herder J-WA, Nikzad, S, Nakazawa, K, Burderi L., Di Salvo T., Sanna A., Fiore F., Riggio A., Gambino A.F., Amarilli F., Amati L., Ambrosino F., Amelino-Camelia G., Anitra A., Barbera M., Bechini M., Bellutti P., Bertacin R., Bertuccio G., Campana R., Cao J., Capozziello S., Ceraudo F., Chen T., Cinelli M., Citossi M., Clerici A., Colagrossi A., Costa E., Curzel S., De Laurentis M., Della Casa G., Demenev E., Del Santo M., Della Valle M., Dilillo G., Efremov P., Evangelista Y., Feroci M., Feruglio C., Ferrandi F., Fiorini M., Fiorito M., Frontera F., Fuschino F., Gacnik D., Galgoczi G., Gao N., Gandola M., Ghirlanda G., Gomboc A., Grassi M., Guidorzi C., Guzman A., Iaria R., Karlica M., Kostic U., Labanti C., La Rosa G., Lo Cicero U., Lopez Fernandez B., Lunghi P., Malcovati P., Maselli A., Manca A., Mele F., Milankovich D., Monge A., Morgante G., Nava L., Negri B., Nogara P., Ohno M., Ottolina D., Pasquale A., Pal A., Perri M., Piccinin M., Piazzolla R., Pirrotta S., Pliego-Caballero S., Prinetto J., Pucacco G., Puccetti S., Rapisarda M., Rashevskaya I., Rashevski A., Ripa J., Russo F., Papitto A., Piranomonte S., Santangelo A., Scala F., Sciarrone G., Selcan D., Silvestrini S., Sottile G., Rotovnik T., Tenzer C., Troisi I., Vacchi A., Virgilli E., Werner N., Wang L., Xu Y., Zampa G., Zampa N., Zane S., and Zanotti G.
- Subjects
Physics ,CubeSats ,Gamma-Ray Bursts ,Photon ,Gravitational Wave counterparts ,010308 nuclear & particles physics ,Gravitational wave ,Space time ,Quantum gravity ,Astronomy ,Triangulation (social science) ,01 natural sciences ,Settore FIS/05 - Astronomia E Astrofisica ,All-sky monitor ,Observatory ,X-rays ,0103 physical sciences ,Nano-satellites ,Temporal triangulation ,Gamma-ray burst ,Quantum foam ,010303 astronomy & astrophysics - Abstract
GrailQuest (Gamma-ray Astronomy International Laboratory for Quantum Exploration of Space-Time) is an ambitious astrophysical mission concept that uses a fleet of small satellites whose main objective is to search for a dispersion law for light propagation in vacuo. Within Quantum Gravity theories, different models for space-time quantization predict relative discrepancies of the speed of photons w.r.t. the speed of light that depend on the ratio of the photon energy to the Planck energy. This ratio is as small as 10-23 for photons in the γ- ray band (100 keV). Therefore, to detect this effect, light must propagate over enormous distances and the experiment must have extraordinary sensitivity. Gamma-Ray Bursts, occurring at cosmological distances, could be used to detect this tiny signature of space-time granularity. This can be obtained by coherently combine a huge number of small instruments distributed in space to act as a single detector of unprecedented effective area. This is the first example of high-energy distributed astronomy: a new concept of modular observatory of huge overall collecting area consisting in a fleet of small satellites in low orbits, with sub-microsecond time resolution and wide energy band (keV-MeV). The enormous number of collected photons will allow to effectively search these energy dependent delays. Moreover, GrailQuest will allow to perform temporal triangulation of impulsive events with arc-second positional accuracies: an extraordinary sensitive X-ray/Gamma all-sky monitor crucial for hunting the elusive electromagnetic counterparts of Gravitational Waves, that will play a paramount role in the future of Multi-messenger Astronomy. A pathfinder of GrailQuest is already under development through the HERMES (High Energy Rapid Modular Ensemble of Satellites) project: a fleet of six 3U cube-sats to be launched by the end of 2022.
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