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A new GNSS integrity monitoring based on channels joint characterization
Christophe Charbonnieras;Jonathan Israel;François Vincent;Lionel Ries;Marion Aubault-Roudier;Franck Barbiero;Guillaume Carrie
2016 IEEE/ION Position, Location and Navigation Symposium (PLANS)
Year: 2016 | Conference Paper |
Cited by: Papers (2)
Many GNSS (Global Navigation Satellites System) applications need high integrity performances. Receiver Autonomous Integrity Monitoring (RAIM), or similar method, is commonly used. Initially developed for aeronautics, RAIM techniques may not be fully adapted for terrestrial navigation, especially in urban environments. Those techniques use basically the pseudoranges to derive an integrity criterio...Show More
SISO, MIMO and SIMO characterisation of the Land Mobile and Nomadic Satellite propagation channels
Frédéric Lacoste;Joël Lemorton;Laurent Casadebaig;Mehdi Ait-Ighil;Belen Montenegro Villacieros;Guillaume Carrié;Franck Rousseau
2013 7th European Conference on Antennas and Propagation (EuCAP)
Year: 2013 | Conference Paper |
Cited by: Papers (4)
This paper presents the configuration and sample results of two experiments carried out by ONERA and CNES. These measurements were performed at 2.2 and 3.8 GHz with SISO, MIMO and SIMO antennas configurations. A first experiment includes multi-elevation characterization of the Land Mobile Satellite Channel. The second one includes both Land Mobile and Nomadic configurations.Show More
A wideband and multifrequency propagation channel simulation
2013 7th European Conference on Antennas and Propagation (EuCAP)
Year: 2013 | Conference Paper |
Cited by: Papers (2)
A major source of positioning errors in challenging environments such as urban areas is related to scattering and reflections of GNSS signals in the local environment of the receiver. The corresponding multipaths become even more critical as the number of applications available in constrained environments increases as well as the need for quality of service and integrity. Many multipath mitigation...Show More
A Rain Attenuation Time-Series Synthesizer Based on a Dirac and Lognormal Distribution
Xavier Boulanger;Laurent Feral;Laurent Castanet;Nicolas Jeannin;Guillaume Carrie;Frederic Lacoste
In Recommendation ITU-R P.1853-1, a stochastic approach is proposed to generate long-term rain attenuation time series , including rain and no rain periods anywhere in the world. Nevertheless, its dynamic properties have been validated so far from experimental rain attenuation time series collected at mid-latitudes only. In the present paper, an effort is conducted to derive analytically the first...Show More
A Deterministic Satellite-to-Indoor Entry Loss Model
Thomas Jost;Guillaume Carrié;Fernando Pérez-Fontán;Wei Wang;Uwe-Carsten Fiebig
Advances in satellite and receiver technology make former denied areas like indoors accessible for satellite based radio services. As a consequence, suitable penetration loss models are of significant importance for service availability planning. Standard penetration loss models ignore the building layout in relation to the transmitter-receiver geometry. Within this paper, we introduce the term en...Show More
Statistics of total attenuation and fade dynamics from measurements in Toulouse of the 19.7 GHz beacon of Eutelsat Hot Bird 6
2012 6th European Conference on Antennas and Propagation (EUCAP)
Year: 2012 | Conference Paper |
Cited by: Papers (8)
The objective of this paper is to briefly present the statistical analysis of a new propagation experiment carried out by ONERA in Toulouse from the 19.7 GHz beacon of the Eutelsat Hot Bird 6 satellite. A beacon Earth station, a profiling radiometer and a rain gauge were deployed and 2 years of beacon data have been collected, processed and analysed. This paper presents the statistical results obt...Show More
A generative MIMO channel model: Encompassing single satellite and satellite diversity cases
2012 6th European Conference on Antennas and Propagation (EUCAP)
Year: 2012 | Conference Paper |
Cited by: Papers (3)
This paper addresses the statistical modeling of MIMO-LMS fading channels. In the absence of accurate experimental results, a statistical model for the characterization of MIMO-LMS channels is proposed based on consolidation of available experimental results for SISO-LMS, SIMO-LMS and MISO-LMS as well as on their extrapolation to the MIMO-LMS and satellite diversity cases of interest.Show More
Instruments, data and techniques for the assessment of the atmospheric noise emission in Satcom ground stations
V. Mattioli;F. S. Marzano;S. Crewell;G. Carrie;U. Löhnert;D. Cimini;C. Capsoni;E. Fionda;A. Martellucci
2012 6th European Conference on Antennas and Propagation (EUCAP)
Year: 2012 | Conference Paper |
Cited by: Papers (4)
A review of microwave radiometric (MWR) instruments, algorithms and ancillary data for deriving total attenuation and sky noise in propagation experiments is presented. The paper also includes reference to MWR networks, experimental databases and identification of the channel condition in propagation experiments and telecom systems.Show More
Land Mobile Satellite Dual Polarized MIMO Channel Along Roadside Trees: Modeling and Performance Evaluation
Michael Cheffena;Fernando Pérez Fontan;Frédéric Lacoste;Erwan Corbel;Henri-Jose Mametsa;Guillaume Carrie
We present a novel physical-statistical, generative model for the land mobile satellite (LMS), dual polarized, multiple-input-multiple-output (MIMO) channel along tree-sided roads. Said model is parameterized by means of a physical model based on the multiple scattering theory (MST) which accounts for the signal attenuation and scattering by trees. Moreover, finite-difference time-domain (FDTD) el...Show More
The impact of scattering conditions identification method on the processing of satellite beacon data using microwave profiling radiometer measurements in South of France
A. Vilhar;G. Kandus;G. Carrie;L. Castanet;C. Riva;A. Martellucci
Proceedings of the 11th International Conference on Telecommunications
Year: 2011 | Conference Paper |
Satellite communications at Ka and Q/V bands are sensitive to atmospheric impairments. In order to build proper Fade Mitigation techniques, based on statistical models, extensive measurements of satellite signals together with atmospheric effects have to be performed. The procedures for combining beacon and radiometer data are sensitive to the accuracy of correctly recognized scattering atmosphere...Show More
A rain attenuation time series synthesizer based on 2-state Markov chains coupled to an “event-on-demand” generator
Marcio E. C. Rodrigues;Guillaume Carrie;Laurent Castanet;Luiz A. R. da Silva Mello
Proceedings of the 5th European Conference on Antennas and Propagation (EUCAP)
Year: 2011 | Conference Paper |
Cited by: Papers (1)
Rain attenuation time series synthesizers constitute an important resource to the design, test and optimization of Fade Mitigation Techniques (FMTs). In the absence of experimental propagation data for every possible Earth-Space configuration, the synthesis of rain attenuation time series becomes an interesting solution to allow for the reproduction of the long-term dynamic characteristics of rain...Show More
Joint results of 20 GHz recent earth-space propagation experiments in Canada and europe
César Amaya;Tu Nguyen;Armando Rocha;Jose Manuel Riera;Ana Benarroch;Pedro García-del-Pino;Jose Miguel García-Rubia;Guillaume Carrie;Laurent Castanet
Proceedings of the 5th European Conference on Antennas and Propagation (EUCAP)
Year: 2011 | Conference Paper |
Cited by: Papers (4)
Propagation effects such as rain attenuation or the influence of gases and clouds cause deeper fades in the Ka-band than at lower frequencies. Communication systems provide means to mitigate such propagation impairments, but a better experimental characterization of propagation effects can lead to better design and operation of fade mitigation techniques (FMT). In this collaborative paper, the mai...Show More
Comparison of SAGE and classical multi-antenna algorithms for multipath mitigation in real-world environment
Sébastien Rougerie;Andriy Konovaltsev;Manuel Cuntz;Guillaume Carrie;Lionel Ries;François Vincent;Romain Pascaud
The performance of the Space Alternating Generalized Expectation Maximisation (SAGE) algorithm for multipath mitigation is assessed in this paper. Numerical simulations have already proven the potential of SAGE in navigation context, but practical aspects of the implementation of such a technique in a GNSS receiver are the topic for further investigation. In this paper, we will present the first r...Show More
Slant path rain attenuation synthesizers for tropical and equatorial regions
M. E. C. Rodrigues;L. A. R. Silva Mello;M. S. Pontes;G. Carrié;L. Castanet
2010 14th International Symposium on Antenna Technology and Applied Electromagnetics & the American Electromagnetics Conference
Year: 2010 | Conference Paper |
Cited by: Papers (2)
In tropical and equatorial areas, the terrestrial telecommunications infrastructure is less developed than in temperate regions and there is a strong need to implement satellite communication systems in the next few years. These systems have the advantage of serving wide regions with a short deployment time and the possibility to reach a large market size for economic profitability. For new consum...Show More
Study and test of rain attenuation time series synthesizers for tropical and equatorial areas
Marcio E. C. Rodrigues;Guillaume Carrié;Laurent Castanet;Luiz A. R. Silva Mello
Proceedings of the Fourth European Conference on Antennas and Propagation
Year: 2010 | Conference Paper |
Cited by: Papers (3)
To develop and test real-time Fade Mitigation Techniques control algorithms, propagation time series are needed. An alternative to using real data collected from propagation experiments is to generate typical fading time-series making use of climatological characteristics as well as geometrical and radio-electrical parameters of the link. The aim of this paper is to present and validate rain atten...Show More
Global Archive of propagation measurements for satellite communication systems
J. Lemorton;L. Castanet;G. Blarzino;G. Carrie;D. Vanhoenacker-Janvier;B. Montenegro-Villacieros;D. Wendland;A. Martellucci
2009 3rd European Conference on Antennas and Propagation
Year: 2009 | Conference Paper |
This paper presents the study carried out to design and develop an archive of propagation measurements. The goal of this action was to be able to keep measured datasets in good shape, because due to the rapid changing situation in the telecommunication sector, some of the datasets may become unavailable. This will be damageable since these datasets are of very good value for the development of pro...Show More
A new propagation campaign in tropical areas: The Ka-band propagation experiment over India with the GSAT-4 satellite
K.S. Dasgupta;A. Charania;A. Shukla;R. Acharya;K. Bandyopadhyay;L. Castanet;J. Lemorton;G. Carrie;F. Lacoste;J.P. Taisant;F. Carvalho
2009 3rd European Conference on Antennas and Propagation
Year: 2009 | Conference Paper |
Cited by: Papers (2)
An opportunity has been proposed recently by the Space Applications Center (SAC) of the Indian Space Research Organization (ISRO) to carry out a propagation experiment at Ka-band over India. To this purpose, the GSAT-4 satellite will board two propagation beacons at 20.2 GHz and 30.5 GHz in linear polarization. The objective of this paper is to present the GSAT-4 propagation experiment. In a first...Show More
Study of a rain attenuation space-time channel model for tropical and equatorial areas
Nicolas Jeannin;Guillaume Carrie;Marcio Rodrigues;Laurent Castanet;Frederic Lacoste
2009 3rd European Conference on Antennas and Propagation
Year: 2009 | Conference Paper |
This paper tackles some issues on the modelling of the propagation channel in space and in time at Ku band and above for tropical or equatorial areas. In those areas, that will account for a large fraction of the satellite communication market in the next years, propagation impairments trough the troposphere especially due to rain can reach extreme values and thus make indispensable the use of Fad...Show More
Validation of rain attenuation time series synthesizers for temperate area - on the enhanced Maseng-Bakken model
2008 IEEE International Workshop on Satellite and Space Communications
Year: 2008 | Conference Paper |
Cited by: Papers (10)
To develop and test real time fade mitigation techniques control algorithms, propagation time series are needed. An alternative to using real data collected from propagation experiments is to generate typical fading time series making use of climatological characteristics as well as geometrical and radio-electrical parameters of the link. The aim of the study presented in this paper is to validate...Show More
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