Zobrazeno 1 - 10
of 29
pro vyhledávání: '"Graziani, Alberto"'
Autor:
Graziani, Alberto <1980>
Ground-based Earth troposphere calibration systems play an important role in planetary exploration, especially to carry out radio science experiments aimed at the estimation of planetary gravity fields. In these experiments, the main observable is th
Externí odkaz:
http://amsdottorato.unibo.it/3023/
Autor:
Graziani, Alberto, Prederi, Davide, Trezzini, Alberto Angelo, Favale, Marco, Masarati, Pierangelo
Publikováno v:
Aerotecnica Missili & Spazio: Journal of Aerospace Science, Technologies & Systems; 20240101, Issue: Preprints p1-9, 9p
Autor:
Lemorton, J., Israel, J., Jost, T., Walter, M., Graziani, Alberto, Vanhoenacker-Janvier, Danielle, Floury, N., 11th European Conference on Antennas and Propagation (EuCAP 2017)
Publikováno v:
2017 11th European Conference on Antennas and Propagation (EUCAP).
The objective of this paper is to present the development of a new software tool for the analysis of propagation effects on satellite-to-aircraft communications, valid for frequencies between VHF and Ka-band. This tool shall take into account several
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a6344ee8d48ea2b06da4d8070de5de57
https://doi.org/10.23919/eucap.2017.7928569
https://doi.org/10.23919/eucap.2017.7928569
Autor:
Ventouras, S., Reeves, R., Rumi, E., Perez-Fontan, F., Machado, F., Pastoriza, V., Rocha, A., Mota, S., Jorge, F., Panagopoulos, A.D., Papafragkakis, A.Z., Kourogiorgas, C.I., Fiser, O., Pek, V., Pesice, P., Grabner, B., Vilhar, A., Kelmendi, A., Hrovat, A., Vanhoenacker-Janvier, Danielle, Graziani, Alberto, Quibus, Laurent, Goussetis, G., Martellucci, A., 11th European Conference on Antennas and Propagation (EuCAP 2017)
Publikováno v:
2017 11th European Conference on Antennas and Propagation (EUCAP).
The upcoming migration of satellite services to higher bands, namely the Ka- and Q-bands offers many advantages in terms of bandwidth, data rates and system capacity. However, it poses challenges as propagation effects introduced by the various atmos
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::11f0956723ad99cd262bfbf30a9b5f51
https://doi.org/10.23919/eucap.2017.7928299
https://doi.org/10.23919/eucap.2017.7928299
Autor:
Vanhoenacker-Janvier, Danielle, Graziani, Alberto, Grootaers, Thomas, Lechien, Luc, Coenegrachts, Fabien, Soupart, Thomas, Martellucci, Antonio, Plimon, Karin, Schoenhuber, Michael, 2016 International Workshop on Tracking, Telemetry and Command Systems for Space Applications (TTC)
The paper describes an automated data processing system of propagation measurements from satellite beacon in the microwave spectral range. The software has been developed in the framework of the ESA contract “Data Collection and Processing System f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______1493::cddff658abd934fc0a996fbe802adb97
https://hdl.handle.net/2078.1/182391
https://hdl.handle.net/2078.1/182391
Autor:
Graziani, Alberto, Vanhoenacker-Janvier, Danielle, Pereira, Carlos, Riva, Carlo, Vergani, Alessandro, Lemorton, Joel, 10th European Conference on Antennas and Propagation (EuCAP 2016)
The synthetized attenuation time series together with the Complementary Cumulative Distribution Function of attenuation values play a crucial role for the design and validation of communication systems. ITU-R recommendations propose different models
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::82750f8b5fa1c522502c2fc4509792a0
https://hdl.handle.net/2078.1/182393
https://hdl.handle.net/2078.1/182393
Autor:
Graziani, Alberto
Publikováno v:
Aslib Proceedings, 1974, Vol. 26, Issue 7, pp. 313-319.
Externí odkaz:
http://www.emeraldinsight.com/doi/10.1108/eb050466
Radio science experiments aimed to the estimation of general relativity parameters request very stringent requirements in terms of observables residual noise. Among the error sources affecting observable signals, transmission media represent a signif
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______4094::73681ef5eccf6d052fb44d19275998b3
http://hdl.handle.net/11585/100139
http://hdl.handle.net/11585/100139
Autor:
ANTONINI, FABIO, GRAZIANI, ALBERTO, TORTORA, PAOLO, A. Tambini, A. Palli, M. Macellari, A. Schiaratura, L. Schirone
The microsatellite project ALMASat-1, started in 2003 at the university of Bologna, is scheduled for launch on-board the VEGA Maiden Flight, at present scheduled for the end of 2009. The design of the power system has been frozen and the flight hardw
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::56be63666d28b63d4d0cbc0f029f32c4
http://hdl.handle.net/11573/358512
http://hdl.handle.net/11573/358512
The path delay introduced by the Earth troposphere is one of the main error sources for deep space tracking observables. In order to remove all the error sources from these observables, a precise Earth troposphere calibration system has to be develop
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______4094::0c702145561ebfd4cf06e29a172164c0
http://hdl.handle.net/11585/88402
http://hdl.handle.net/11585/88402