Gérard Maral
10 Avenue Edouard Belin
BP 4004
31028 TOULOUSE Cedex 4
FRANCE
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Né à Oujda (Maroc) le 18 janvier1942, Gérard Maral est ingénieur de l' Ecole Centrale des Arts et Manufactures (1965) et a obtenu le Doctorat d'Etat en 1970. Gérard Maral est nommé Professeur à l' Université Paul Sabatier de Toulouse en 1970 En 1984, il devient Professeur à l'Ecole Nationale Supérieure des Télécommunications (ENST) et crée le site de Toulouse de l'ENST sous la forme d'une entité de formation et de recherche dans le domaine des systèmes de télécommunications par satellites. La formation dispensée sur le site s'adresse aux élèves-ingénieurs du Groupe des Ecoles des Télécommunications(GET). La recherche est fondée sur un partenariat avec les entreprises et les agences spatiales. En 2003, l’ENST ouvre sur le site de Toulouse sous la responsabilité pédagogique du Professeur Maral le ‘Master of Science in Aerospace Communications Systems’. L'expérience du Professeur Gérard Maral en matière d'enseignement et de recherche dans le domaine des télécommunications par satellites est reconnue au plan international. Il est Professeur Associé à l'Université de Surrey . Expert auprès des entreprises du secteur spatial et de l'Agence Spatiale Européenne, et comme expert pour l'Union Internationale des Télécommunications (UIT). Auteur de plusieurs brevets, et d'articles dans le domaine de la conception aidée par ordinateur, les communications numériques, les systèmes de communications par satellite. Il a rédigé plusieurs ouvrages sur les télécommunications par satellite : ‘Télécommunications par satellite’ (Masson, 1982), ‘Satellite Communications Systems’ (Wiley, 1ère édition 1986, 2ème édition 1994, 3ème édition 1998, 4ème édition 2002), VSAT Networks (Wiley, 1ére édition 1995, 2ème édition 2004) et co-éditeur de l’ouvrage ‘Service efficient network interconnection via satellite’ (Wiley 2002) par Y. Fun Hu, G. Maral et E. Ferro. Cours de formation continue au plan international dans le cadre de CEI-Europe:
Membre du Comité de Rédaction de plusieurs revues internationales:
Membre de nombreux Comités de Programmes de conférences internationales. Représentant français au sein de plusieurs groupes d'études COST(Coopération Européenne dans le domaine de la recherche scientifique et technique) :
Le Professeur Gérard Maral a pris sa retraite au
mois de juillet 2007. |
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Born
January 18, 1942, Oujda (Morocco), Gérard Maral graduated from Ecole
Centrale des Arts et Manufactures (1965) and received the Doctorat d'Etat
in 1970. He then was appointed in
1970 as a Professor of the University Paul Sabatier of Toulouse (France). Professor Gérard Maral
joined the Ecole Nationale Supérieure des Télécommunications (ENST) in 1984 as a full time Professor
and subsequently developed the site at Toulouse of ENST and its related Satellite
Communications Systems Educational and Research Programme. This Programme is
open to students of the Groupe des Ecoles des Télécommunications (GET).
Research is performed in partnership with industries and space
agencies. In 2003, Professor Maral
sets up the ‘Master of
Science in Aerospace Communications Systems’ for ENST on its Toulouse
site. Acted on several
occasions as a consultant to space industry and to the European Space Agency,
and as an expert for the International Telecommunication Union (ITU). Holds several patents in
the field of satellite communications, and has authored articles in the areas
of computer-aided design, digital communications, and advanced satellite
communications systems. He also is the author of textbooks on satellite
communications : ‘Télécommunications par satellite’ (Masson, 1982), ‘Satellite
Communications Systems’ (Wiley, 1st edition 1986, 2nd edition 1994, 3rd
edition 1998, fourth
edition 2002), ‘VSAT Networks’ (Wiley, 1st edition 1995, 2nd
edition 2004) and co-editor of
‘Service
Efficient Network Interconnection via Satellite’ (Wiley 2002) by Y. Fun
Hu, G. Maral et E. Ferro. Lecturer for continuing
education under the auspices of CEI-Europe :
Member of
the Editorial Board of several internationals journals :
Regularly
participated in International Conference Committees. Member of several
european COST actions :
Professor
Gérard Maral has retired in July 20007 |
Publications
130 - F. Arnal, L. Dairaine, J. Lacan, G. Maral, "Cross-Layer reliability
management for multicast over satellite", International Journal of
Computer Networks, vol. 48/1 pp. 29-43, 2005.
129 - F. Arnal, L.
Dairaine, J. Lacan, G. Maral , Multi-Protocol Header Protection (MPHP), a Way
to Support Error-Resilient Multimedia Coding in Wireless Networks, - 7th IEEE
International Conference on High Speed Networks and Multimedia Communications
HSNMC'04 , June 30 - July 2, 2004, Toulouse, France
128 - P. Boedhihartono, G.
Maral, ‘Handover evaluation in non-geostationary satellite constellation
systems implementing satellite mutual visibility and diversity’, Space
Communications, Vol 19, No 1, 2003, pp 23-45.
127 - F. Arnal, A.
Bolea-Alemagnac, M. Bousquet, L. Castanet, L. Claverotte, L. Dairaine, R.
Gutierez-Galvan, G. Maral, ‘Reliable multicast transport protocols performances
in emulated satellite environment taking into account an adaptive physical
layer for the GEOCAST system’, Proceedings of the International Workshop of
COST Actions 272 and 280, WPP-209, ESTEC, Noordwijk, The Netherlands, 26-28
May, 2003, pp 357-366.
126 - P. Boedhihartono, G.
Maral, ‘Evaluation of the guaranteed handover algorithm in satellite
constellations requiring mutual visibility’, International Journal of Satellite
Communications and Networking, Vol 21, No 2, March-April 2003, pp 163-182.
125 - L. Franck, G. Maral,
‘Static and adaptive routing in ISL network from a constellation perspective’,
International Journal of Satellite Communications, Vol 20, No 6, Nov-Dec 2002,
pp 455-475.
124 - L. Franck, G. Maral,
‘Routing in networks of intersatellite links’, IEEE Transactions on Aerospace
and Electronic Systems, Vol 38, No 3, July 2002, pp 902-917.
123 - L. Franck, G. Maral,
‘Signaling for inter-satellite link routing in broadband non-GEO satellite
systems’, Computer Networks, Vol 39, 2002, pp 79-92.
122 - A. Pirovano, J. Radzik, G. Maral,
‘Designing a New Call Admission Control Technique for ATM Satellite Networks’,
20th AIAA International Satellite Communications Systems Conference,
Montréal,13-16 May 2002, paper 1966.
121 - L. Franck, G. Maral, ‘Signalling for
intersatellite link routing’, 20th AIAA International Satellite Communications
Systems Conference, Montréal,13-16 May 2002, paper 1965.
120 - J. Restrepo, G.
Maral, G. Massy, J. Velez, ‘Evaluation of traffic performances in non-GEO
satellite constellation for mixed services (mobile and fixed)’, 20th AIAA
International Satellite CommunicationsSystems Conference, Montréal,13-16 May
2002, paper 1883.
119 - M. Werner, J. Frings,
F. Wauquiez, G. Maral, "Topological design, routing and capacity
dimensioning for ISL networks in broadband LEO satellite systems",
International Journal of Satellite Communications, Vol 19, No 6, 2001, pp
499-527.
118 - J. Restrepo, G.
Maral, G. Massy, "Non GEO satellite constellation simulator : services and
scenarios, software tool architecture, and validation", 19th AIAA
International Satellite CommunicationsSystems Conference, Toulouse,17-20 April
2001, paper 303.
117 - A. Pirovano, G. Maral, "Contrôle d'Admission dans les réseaux ATM multimédia par satellites", Colloque Francophonepour l'ingénierie des réseaux, CFIP 2000, Toulouse, 17-20 Oct 2000, pp 49-62.
116 - W. Krewel, G. Maral,
"Analysis of the impact of handover strategies on the QoS of satellite
diversity based communications systems", 18th AIAA International Satellite
Communications Systems Conference, Oakland, 11-14 April 2000, pp 393-403.
115 - L. Franck, G. Maral,
"Candidate algorithms for routing in a network of inter-satellite
links", 18th AIAA International Satellite Communications Systems
Conference, Oakland, 11-14 April 2000, pp 805-815.
114 - J. Restrepo, G.
Maral, S. Jaramillo, D. Rivera, "Enhanced service in non-GEO constellation
with satellite fixed cell (SFC)", 18th AIAA International Satellite
Communications Systems Conference, Oakland, 11-14 April 2000,pp 382-392.
113 - K. Choi, G. Maral ,
R. Rumeau, "A new generation CCSDS file delivery protocol for multi-hopped
space file transfer", Space Communications, Vol 16, No 1, 2000, pp 29-42.
112 - K. Choi, G. Maral ,
R. Rumeau, "Space link simulator for development of new packet based space
communication protocols", International Journal of Satellite Communications,
Vol 17, No 6, 1999, pp 383-398.
111 - M. Werner, F.
Wauquiez, J. Frings, G. Maral, "Capacity dimensioning of ISL networks in
broadband LEO satellite systems", 6th InternationalMobile Satellite
Conference IMSC'99, Ottawa, June 16-18, 1999, pp 334-341.
110 - G. Maral, J.
Restrepo, F. Cabarcas, S. Jaramillo, D. Rivera, "Several applications of
Guaranteed Handover (GH) service in mobile satellite systems", 6th
International Mobile Satellite Conference IMSC'99, Ottawa, June 16-18, 1999, pp
164-171.
109 - W. Krewel, G. Maral,
"A method for evaluating the capacity ofnon-GEO satellite constellations
for mobile communications", 6th InternationalMobile Satellite Conference
IMSC'99, Ottawa, June 16-18, 1999, pp 69-74.
108 - K. Choi, G. Maral ,
R. Rumeau, "A new generation space communication protocol for multi-hopped
file transfer" VTC'99, Houston, May 16-19, 1999.
107 - K. Choi, J. C.
Llorens, G. Maral , "Personal computer aided design tool for developing
TTC communication equipments with cheap componentsfrom the electronic consumer
market", Space Communications, Vol 15, 1998,pp 21-31.
106 - G. Maral, J.
Restrepo, E. del Re, R. Fantacci, G. Giambene, "Performance analysis for a
Guaranteed Handover Service in an LEO constellation witha'Satellite-Fixed
Cell'". IEEE Transactions on Vehicular Technology, Vol47,No 4, Nov 1998,
pp 1200-1214.
105 - J. Restrepo, G.
Maral, S. Jaramillo, F. Cabarcas, "Extended analytical model for
calculating the quality of service (QoS) in a mobile satellitesystem (MSS) with
a guaranteed handover (GH) service", Proceedings of theThirdMobile and
Personal Satellie Communications Conference, EMPS'98, Venice,Nov 4-5, 1998, pp
45-62.
104 - W. Krewel, G. Maral,
"Single and multiple satellite visibility statistics of first
generation non-GEO constellations for personal communications",
International Journal of Satellite Communications, Vol 16, No 2,
1998,pp105-125.
103 - M. Werner, C. Mayer,
G. Maral, M. Holzbock, "A neural networkapproach to distributed adaptive
routing of LEO intersatellite link traffic",48thVehicular Technology
Conference, VTC'98, Ottawa, Canada, May 18-21,1998.
102 - K. Choi, G. Maral ,
J. C. Llorens, "Design of a TTC communications equipment incorporating
components from the electronic consumer's market", 17th AIAA International
Communications Satellite Systems Conference, Yokohama, Japan, Feb 23-27, 1998.
101 - K. Choi, J. C.
Llorens, A. Barnaba, G. Maral, "Applications of the maximum power
point tracking method to the adaptive power supplysub-system of a
microsatellite", 17th AIAA International CommunicationsSatellite Systems
Conference, Yokohama, Japan, Feb 23-27, 1998.
100 - K. K. Choi, A.
Barnaba, J.C. Llorens, G. Maral, "A versatile power conditioning technique
for micorsatellite applications", Space Communications, Vol 14, 1997, pp
231-241.
99 - N. Celandroni, E.
Ferro, F. Potorti, G. Maral, "Delay analysis for interlan traffic
using two suitable TDMA satellite access schemes",International Journal of
Satellite Communications, Vol 15, No 4, 1997,pp 170-175.
98 - N. Celandroni, E.
Ferro, F. Potorti, G. Maral, "Bursty data traffic via satellite :
performance comparison between two TDMA access schemes", 4th
European Conference on Satellite Communications, ECSC-4,Roma, Italy, Nov 18-20,
1997, pp 170-175.
97 - K. Choi, J.C. Llorens,
G. Maral,"Incorporating components fromthe electonic consumer market into
TTC subsystem", ESA 2nd Round Tableon Micro/Nano Technologies for
Space, Oct 15-17, 1997, ESTEC, Noordwijk,The Netherlands, pp 265-277.
96 - K. Choi, A. Barnaba,
J.C. Llorens, G. Maral, "Maximum power point tracking for
microsatellite power supply subsystem", ESA 2nd RoundTable on Micro/Nano
Technologies for Space, Oct 15-17, 1997, ESTEC,Noordwijk, The
Netherlands, pp 101-113.
95 - M. Werner, O. Kroner,
G. Maral, "Analysis of intersatellite links load in a near polar LEO
constellation", International Mobile SatelliteConference IMSC'97,
Pasadena, Ca, June 16-18, 1997, pp 289-294.
94 - M. Werner, G. Maral,
"Traffic flows and dynamic routing in LEOintersatellite link
networks", International Mobile Satellite ConferenceIMSC'97, Pasadena, Ca,
June 16-18, 1997, pp 283-288.
93 - S. Blondeau, J. P.
Taisant, J. B. Besset, G. Maral, "Resource allocation for CDMA satellite
systems", International Mobile Satellite Conference,IMSC'97, Pasadena, Ca,
June 16-18, 1997, pp 277-282.
92 - J. Restrepo, G. Maral,
"Guaranteed handover (GH) service in a non GEO constellatiion with
satellite fixed cell (SFC) systems", International Mobile Satellite
Conference IMSC'97, Pasadena, Ca, June 16-18, 1997, pp19-24.
91 - J. Restrepo, G. Maral,
"Comparing the 'satellite-fixed cell' (SFC) and the 'earth-fixed cell'
(EFC) concepts for a non-GEO satellite constellation", COMMSPHERE97,
Lausanne, Feb 11-17, 1997.
90 - M. Werner, C.
Delucchi, H.J. Vogel, G. Maral, J. J. Deridder, "ATM based routing for
LEO/MEO satellite networks with intersatellite links",IEEE Journal on
Selected Areas in Communications, Vol 15, No 1, pp 69-82,January 1997.
89 - J. Restrepo, G. Maral,
"Cellular geometry for world-wide coverage by non-GEO satellites using
earth-fixed cell technique", Space Communications, Vol 14 No 3, pp
179-189, 1996.
88 - G. Maral , "Systèmes de télécommunicationspar satellites", article du traité Electronique des Techniques del'Ingénieur, E 7650 ,Dec 1996, pp 1-27.
87 - J. Restrepo, G. Maral,
"Cellular geometry for world-wide coverage by non-GEO satellites using
earth-fixed cell technique", GLOBECOM'96, Londres, Dec 18-22, 1996, pp
2133-2137.
86 - J. Restrepo, G. Maral,
"Providing appropriate grades of serviceto fixed and mobile users in a
non-geostationary satellite fixed cell system", 2nd European Workshop on
Mobile/Personal Satcoms (EMPS'96), Rome, 9-11Oct, 1996, pp 79-96.
85 - J. Restrepo, G. Maral,
"Constellation sizing for non GEO earthfixed cell satellite systems",
3rd International Symposium on Small SatellitesSystems & Services
(SSSS'94), Annecy, 24-28 June 1996.
84 - M. Werner, C.
Delucchi, G. Maral, J. J. Deridder, "ATM virtualpath routing for LEO/MEO
satellite networks with intersatellite links",5th IEE International
Conference on Satellite Systems for Mobile Communicationsand Navigation,
London, 13-15 May 1996, pp 143-146, IEE publication No424.
83 - J. Restrepo, G. Maral,
"Analysis and comparison of satellite constellation configurations for
global single permanent visibility", 5th IEE International Conference on
Satellite Systems for Mobile Communications and Navigation, London, 13-15 May
1996, pp 102-105.
82 - J. Restrepo, G. Maral,
"Constellation sizing for non GEO earthfixed cell satellite systems",
16th AIAA International Communications Satellite Systems Conference (ICSSC-15),
Washington, Feb 25 - 29, pp 768 - 778, 1996.
81 - S. Blondeau, G. Maral,
J. P. Taisant, "Region oriented resourceallocation methodology for
non-geostationary mobile communications satellitesystems", Space
Communications, Vol 13, No 3, pp 171-191, 1995.
80 - J. Restrepo, G. Maral,
"Coverage concepts for satellite constellations providing communications
services to fixed and mobile users", Space Communications, Vol 13, No 2,
pp 145-157, 1995.
79 - F. Dosiere, G. Maral, J-P. Boutes, "Shadowing process
models formobile and personal satellite systems", GLOBECOM'95, Singapour,
Nov 13-17,1995.
78 - F. Dosiere, G. Maral, J-P. Boutes, "La disponibilité deservice offerte par les systèmes radiomobiles par satellite", 2ème Colloque International sur les Satellites de Communicationset de Navigation pour les Mobiles (Association Aéronautique et Astraunautiquede France), Mandelieu, 11-13 Sept 1995.
77 - S. Blondeau, G. Maral, J.P. Taisant, T. Roussel, "Self-interference in non geostationary satellite systems", 10th International ConferenceonDigital Satellite Communications, Brighton, May 15-19, 1995.
76 - T. Zein, G. Maral, T.
Brefort, M. Tondriaux,"Performance of theCFRA scheme for aggregated
traffic", COST226 symposium, pp 183-197,Budapest, May 11-12, 1995.
75 - A.Pirovano, G.Maral,
"Congestion Avoidance mechanisms in TCP/IPapplied to LAN interconnection
over a star shaped VSAT network", COST226symposium, pp 79-87, Budapest,
May 11-12, 1995.
74 - J. Restrepo, G. Maral,
"The earth fixed cell concept for non geostationary satellite
systems", 1st Andean Telecommunications Conference, Cartagene,May 10-12,
1995.
73 - S. Blondeau, G. Maral,
T. Roussel, J.P. Taisant, "Self interference in non geostationary
satellite systems", Proceedings of the AIAA/ESA Workshop on International
Cooperation in Satellite Communications, Noordwjik, TheNetherlands, March
27-29, 1995, (pp 191-198, ESA SP-372, Sept 1995)
72 - J. Radzik, G. Maral,
" A methodology for rapidly evaluating theperformance of some low earth
orbit satellite systems", IEEE Journal onSelected Areas in Communications,
Vol 13, No 2, pp 301-309, Feb 1995.
71 - J. Radzik, G. Maral, "Communications locales par petits satellites en orbites basses" 2nd International Symposium on Small Satellites Systems & Services (SSSS'94), Biarritz, 27 June - 1 July 1994.
70 - J. Radzik, G. Maral,
"A methodology for rapidly evaluating theperformance of some low earth
orbit satellite systems" 3rd InternationalConference on Universal Personal
Communications (ICUPC'94), pp 407 - 411,San Diego, Sept 27 - Oct.1, 1994.
69 - J-P. Cances, G. Maral,
B. Coulomb, R. Lenormand, "Coverage reconfiguration for dynamic allocation
in a multibeam satellite system", 15th AIAA International Communications
Satellite Systems Conference (ICSSC-15), pp 1032-1041, San Diego, Feb 28 -March
3, 1994.
68 - J. Radzik, G. Maral,
"A methodology for rapidly evaluationg theperformance of some low earth
orbit satellite systems", 15th AIAA InternationalCommunications Satellite
Systems Conference (ICSSC-15), San Diego, Feb28 - March 3, 1994.
67 - F. Dosière, G. Maral, J-P. Boutes " Handover model and application to LEO systems
dimensionning" 15th AIAA International Communications Satellite Systems
Conference (ICSSC-15), pp 770 - 775, San Diego, Feb 28 -March 3,1994.
66 - G. Maral, "The
ways to personal communications via satellite",International Journal of
Satellite Communications, Vol 12, No 1, pp 3-12,1994.
65 - M. Bousquet, G. Maral,
"Digital Communications for satellites",Concise Encyclopedia of
Aeronautics and Space Systems, Pergamon Press,pp 110-117, 1993.
64 - F. Dosiere, T. Zein,
G. Maral, J-P. Boutes, "A model for the handover traffic in low
earth-orbiting (LEO) satellite networks for personal communications",
GLOBECOM'93, Houston, Nov 29 - Dec 2, 1993.
63 - F. Dosiere, T. Zein,
G. Maral, J-P. Boutes, " A model for the handover trafic in low
earth-orbiting (LEO) satellite networks for personal communications", International
Journal of Satellite Communications, Vol. 11, pp 145-149,1993.
62 - J-P. Cances, G. Maral, B. Coulomb, R. Lenormand, "Adaptativité d'une charge utile de satellites multifaisceaux par reconfiguration decouverture", Annales des télécommunications, Vol 48, No 9-10,pp 513-529, 1993.
61 - J.J. De Ridder, G. Maral, H. Meyr, P. Zumegen, "Computer aideddesign for low earth orbit communications satellite systems", Symposium'Conception en 2000 et au-delà : outils et technologies', pp 366- 375, Strasbourg, Nov 24-27,1992.
60 - G. Maral, J.J. De
Ridder, H. Meyr, P. Zumegen, "XEOSCAD (eXpertEarth Orbiting Satellite
Systems Computer Aided Design) : a software toolfor the design of low earth
orbit (LEO) satellite systems for communicationsand radiolocation", 1st
International Symposium on Small Satellites Systemsand Services (SSSS'92),
Arcachon, June 29 - July 3,1992.
59 - J.J. De Ridder, G. Maral, C. Tamise, "Impact des incertitudes delancement sur les performances de visibilité de constellations desatellitesde télécommunications sans contrôle d'orbite",1st International Symposium on Small Satellites Systems and Services (SSSS'92),Arcachon, June 29 - July 3, 1992.
58 - J. Radzik, G. Maral,
"Low earth orbit constellations : orbit control or not", 1st
International Symposium on Small Satellites Systems and Services (SSSS'92),
Arcachon, June 29 - July 3, 1992.
57 - G. Maral, J.J.
DeRidder, H. Meyr, P. Zumegen, "XEOSCAD (eXpertEarth Orbiting Satellite Systems
Computer Aided Design) : a software toolfor the design of low earth orbit (LEO)
satellite systems for communicationsand radiolocation", 9th International
Conference on Digital Satellite Communications(ICDSC-9), pp 393 - 400,
Copenhague, May 18-22, 1992).
56 - X.Y. Guo, G. Maral, M.
Bousquet, "A programmable demultiplexerusing a polyphase approach for
regenerative satellites", 9th InternationalConference on Digital Satellite
Communications (ICDSC-9), pp 297 - 304,Copenhague, May 18-22,1992).
55 - X. Y. Guo, G. Maral,
"A programmable demultiplexer using a polyphase approach for regenerative
satellites", 14th AIAA International Communication Satellite Systems
Conference, Washington, Paper 92-1970, March 22-24, 1992, pp 1227-1233.
54 - T. Zein, G. Maral, M.
Tondriaux, D. Seret, "A dynamic allocationprotocol for a satellite network
integrated within a B.ISDN", Space Communications, Vol 10, No 2-3, pp
83-91, 1992.
53 - T. Zein, G. Maral, M.
Tondriaux, D. Seret, "A dynamic allocationprotocol for a satellite network
integrated within a B.ISDN", 14th AIAAInternational Communication
Satellite Systems Conference, Washington, Paper92-1827, pp185-192, March 22-24,
1992.
52 - B. Jabbari, G. Maral,
"Response-time evaluation of transaction-oriented applications in VSAT
networks", IEEE Journal on selected areas in communications, Vol 10, No 6,
pp 1048-1053, 1992.
51 - J.P. Cances, G. Maral,
B. Coulomb, R. Lenormand, "Satellite payloads equipped with active
antennas for integration in the GSM network", Proceedings of the Mobile
Radio Conference, Nice, France, pp 175-182, Nov 13-15, 1991.
50 - T. Zein, G. Maral
"Stabilized ALOHA-Reservation protocol in a DAMA satellite network",
2nd European Conference on Satellite Communications,ECSC-2, Liège, Belgique,
ESA SP-332, pp 121-126, Oct 22-24, 1991.
49 - T. Zein, G. Maral, M.
Tondriaux, D. Seret, "A dynamic allocationprotocol for a satellite network
integrated with a B.ISDN", 2nd EuropeanConference on Satellite
Communications, ECSC-2, Liège, Belgique,ESA SP-332, pp 15-20, Oct 22-24, 1991.
48 - T. Zein, G. Maral, B.
Jabbari : "Guidelines for a preliminary dimensionning of a transaction
oriented VSAT network", International Journal of Satellite Communications,
Vol 9, No 6, pp 391-398, 1991.
47 - T. Zein, G. Maral, D.
Seret : "Performance modelling of a cellmultiplexer for bursty ATM
traffic", International Journal of Electronics,Vol 71, No6, pp 967-975,
1991.
46 - X. Y. Guo, G. Maral, A. Marguinaud, "Un algorithme rapide pourl'acquisition de synchronisme d'une séquence PN dans un systèmede transmission par étalement de spectre à séquencedirecte" 13ème Colloque GRETSI, Juan les Pins, pp 425-428, 16-20Sept 1991.
45 - X. Y. Guo, G. Maral, A. Marguinaud, R. Sauvagnac, "Méthode de calcul rapide de convolution entre deux séquences dont l'uneest binaire", Annales des télécommunications, Tome 46, No3-4, pp 181-190, 1991.
44 - G. Maral, J.J.
DeRidder, B. G. Evans, M. Richharia, "Low earthorbit satellite systems for
communications", International Journal of Satellite Communications, Vol 9,
No 4, pp 209-225, 1991.
43 - M. Bousquet, G. Maral,
"Satellite antenna depointing originatingfrom attitude control and station
keeping specifications", InternationalJournal of Satellite Communications,
Vol 9, No 2, pp 85-92, 1991.
42 - X-Y. Guo, G. Maral, A.
Marguinaud, R. Sauvagnac, " A fast algorithm for the pseudonoise sequence
acquisition in direct sequence spread spectrum systems", Proceedings of
the 2nd International Workshop on Digital Signal Processing Techniques Applied
to Space Communications, DSP'90, Turin, 24-25 Sept, 1990.
41 - B. Jabbari, G. Maral,
"Performance modeling and simulation of inquiry-response computer
applications using VSATs", Proceedings of the SUPERCOM/ICC 90,Vol 2, pp
304.5.1 - 304.5.5, Atlanta, April 16-19, 1990.
40 - M. Bousquet, G. Maral,
"Orbital aspects and useful relations from earth satellite geometry in the
frame of future mobile satellite systems", AIAA 13th International
Communication Satellite Systems Conference, LosAngeles, Paper 90-0874, March
11-15, 1990.
39 - M. Bousquet, G. Maral,
"Analysis of antenna depointing as a result of satellite attitude control
and station keeping errors", AIAA 13th International Communication
Satellite Systems Conference, Los Angeles, Paper 90-0818,March 11-15, 1990.
38 - G. Maral, "Télécommunications et systèmesaérospatiaux : une formation adaptée aux enjeux de l'espace",Nouvelles Technologies dans les Grandes Ecoles, Numéro Spécialde la Conférence des Grandes Ecoles, Mai 1989.
37 - Sugihartono, G. Maral, "Caractérisation expérimentale des boucles numériques à verrouillage de phase en présence de bruit", Annales des Télécommunications, Tome 43, No 9-10, pp 548-560, 1988.
36 - G. Maral,
"Prospects on future EVA communications", Proceedingsof the AIAAA -
12th Communication Satellite System Conference, ArlingtonVa,Paper
88-0767, pp 148-156, March 13-17, 1988.
35 - G. Maral, M. Bousquet,
"Performance of fully variable assignmentSS/TDMA satellite systmes",
International Journal of Satellite Communications,Vol 5, No 5, pp 279-290,
1987.
34 - G. Maral, M. Bousquet,
"Digital communications : Satellite systems", Systems and Control
Encyclopedia, pp 1043-1050, 1987.
33 - G. Maral,
"Digital communication : fundamentals", System and Control
Encyclopedia, pp 1043-1050, 1987.
32 - G. Maral, "La télévision directe par satellite :définition et enjeux", Numéro Spécial de la Revuedes Anciens Elèves de l'Ecole Nationale Supérieure des Télécommunications de Bretagne, consacré à la télévision par satellites et réseaux câblés, pp 11-31, 6 Octobre 1986.
31 - S. Bentayeb, G. Maral, "Modèle des boucles à verrouillage de phase numériques fonctionnant à faible rapport signalsur bruit", Annales des Télécommunications, Tome 41, No 3,pp 133-146, 1986.
30 - G. Maral, M. Bousquet,
P. Wattier, "Performance of fully variable demand assignment SS/TDMA
satellite system", AIAA 11th Communication Satellite Systems Conference,
San Diego, Paper 86-0630, pp 159-167, March 16-20,1986.
29 - G. Maral, M. Bousquet,
P. Wattier, "Troughput gains obtained from dynamic reconfiguration of the
swithching mode allocation in a SS/TDMAsatellite system", Proceedings of
the Globecom'85, Vol 1, pp 14.5.1 - 14.5.5,New Orleans, Dec 2-5, 1985.
28 - G. Maral, M. Bousquet,
P. Wattier, "Selection of a time slot assignment scheme for a fully variable
demand assignment SS/TDMA system", Proceedings of the ICC'85, Vol 1, pp
8.2.1 - 8.2.5, Chicago, June 23-26, 1985.
27 - Matar Ali Matar, G.
Maral, "A digital PLL for non harmonic signals", International
Journal of Electronics, Vol 58, No 6, pp 885-906, 1985.
26 - G. Maral, M. Bousquet,
"Performance of regenerative/conventionalsatellite systems",
International Journal of Satellite Communications,Vol 2, pp 199-207, 1984.
25 - A.M Abdulsatar, G.
Maral, " Self noise spectral measurement inclock synchronizers", IEEE
Transactions on Communications, Vol COM-31,No 10, pp 1204-1207, October, 1983.
24 - Matar Ali Matar, G.
Maral, " Overall signal-to-noise degradationin binary communication
systems with band limiting filters and digitallyimplemented matched filters",
International Journal of Electronics, Vol54, No 6, pp 833-846, June 1983.
23 - G. Maral, M. Bousquet,
P. Wattier, ‘A practical approach to SS/TDMAtime slot assignment",
Proceedings of the ICC'83, Vol 3, pp F1.4.1 - F1.4.5,Boston, June 20-22, 1983.
22 - G. Maral, M. Bousquet,
P. Wattier, "SS/TDMA time slot assignmentalgorithm with reduced number of
connection time slots", Proceedings ofthe SCC'83,Ottawa, June 15-17, 1983.
21 - E. Akinci, M. Oberle, G. Maral, "Bit synchronisation and detectionby
extended Kalman filtering algorithm implemented with
microprocessor",Prodeedings of the Globecom'82, Vol 2, pp D7.5.1 - D7.5.5,
Miami,Nov 29-Dec2, 1982.
20 - G. Maral, M. Bousquet, "Quelques applications des boucles
àverrouillage de phase aux problèmes de synchronisation dans lesliaisons
spatiales", Annales des Télécommunications, Tome36, No 11-12,
Nov-Dec,1981.
19 - E. Akinci , G. Maral, "Synchronisation et détection de signaux numériques par filtrage de Kalman étendu", 8ème Colloque sur le Traitement du Signal et ses Applications, GRETSI, pp 933-938, Nice, 1-5 Juin 1981.
18 - Ali el Moghazi, G. Maral, A. Blanchard, "Etude théoriqued'un synchronisateur primaire numérique pour signaux MIC", Annalesdes télécommunications, Tome 35, No 9-10, Sept-Octobre 1980.
17 - Ali el Moghazy, G.
Maral, A. Blanchard, "A small acquisition time digital self bit
synchronizer and data detector in signal processing :theories and
applications", North Holland Publishing Company, 1980.
16 - D. Gambart, G. Maral,
"An efficient algorithm reduces the computing time solving stiff
O.D.E", IEEE International Symposium on Circuits andSystems Proceedings,
Vol 1, pp 36-39, April 1980.
15 - D. Gambart, G. Maral, "La méthode de Brayton - Une méthode performante pour la simulation sur ordinateur de circuits électroniques", RAIRO Informatique/Computer Science, Vol 114, No 3, pp 287-309, 1980.
14 - D. Gambart, G. Maral,
"An efficient algorithm reduces computingtime in solving a system of stiff
ordinary differential éaquations",IEEE Transactions on Circuits and
Systems, Vol CAS-27, No 9, pp 747-755,September 1980.
13 - Ali el Moghazy, G.
Maral, A. Blanchard, "Digital PCM bit synchronizer and detector",
IEEE Transactions on Communications, Vol COM -28, pp 1197-1204, August 1980.
12 - D. Gambart, G. Maral,
"Improving non linear electronic circuitsimulation", Computer Aided
Design, Vol 11, No 4, pp 209-216, 1979.
11 - Ali el Moghazi, G. Maral, A. Blanchard, "Réalisation d'unsynchronisateur primaire numérique pour signaux codés", GRETSI,pp 99/1 - 99/6, Nice, 1979.
10 - G. Maral, J. Blanluet, "Une expérience d'utilisation desmoyens audiovisuels dans un enseignement d'Electronique", Onde Electrique,Vol 56, pp 466-471, 1976.
9 - Maral, Bronstad,
Trefali, Kremser, Tanskanen, Kangas, Riedler, Legrand, "On the morphology
of auroral zone X-ray events : large scale observations", Journal of
Atmosphérics and Terrestrial Physics, No 36, p 735,1973.
8 - G. Maral, "Motions
associated with auroral zone electron precipitation", Journal of
Geophysical Research, Vol 75, No 10, 1970.
7 - G. Maral, "Détermination indirecte des caractèresénergétiques des précipitations électroniquesdans la zone aurorale pendant la journée", Annales de Géophysique,Tome 26, Fascicule 1, pp 333-444, 1970.
6 - Kleimenova, Maral, Lacombe, Vigneron, Cambou, "Mise en évidence d'une relation entre l'émission de choeur de l'aube et les précipitations d'électrons d'énergie comprise entre 15 et 150 kev", Compte-rendu de l'Académie des Sciences, Tome 269, p 846, Série B, 1969.
5 - G. Maral, "Musique et Electronique", Journal Musical Français, No 180, p 46, 1969.
4 - F. Cotin, G. Maral, "Stabilité des ballons stratosphériques et de leur nacelle", Aéronautique et Astronautique, Vol 12, No 5,pp 78-80, 1969.
3 - D. Barria, G. Maral, "Configuration des faisceaux monoénergétiques lors des précipitations électroniques aurorales", Compte-rendu à l'Académie des Sciences, Tome 268, p 893, SérieB,1969.
2 - J. Maneuvrier, G. Maral, "Configuration et déplacements des précipitations nocturnes d'électrons auroraux", Compte-rendu à l'Académie des Sciences, Tome 268, p 274-276, Série B, 1969.
1 - F. Cambou, G. Maral, J-P. Treilhou, "Résultats récents sur l’étude
du rayonnement X auroral", Space Research, pp 317-326, 1969.
Brevets/Patents
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Tarif Zein, Gérard Maral : "Stabilisation du
protocoled'accès multiple ALOHA", No 90-16269. US5327432:Protocol for multiple access to a
telecommunications channel from auxiliaryterminals by digitized information
messages and corresponding system Tarif Zein, Gérard Maral, Dominique Seret, Marc Tondriaux :
"Procédéd'allocation de ressources par réservation anticipéedans
un réseau satellite à intégration de services",No 91-12257. US5363374:Method for allocating
resources by anticipated reservation in an integratedservice satellite network Xiao Yong Guo, Gérard Maral : "Dispositif de démultiplexage en
fréquence à filtres numériques", No 91-15931- Brevet europeen :
92403505.8. US5299192:Digital
filter-type frequency demultiplexing device Xiao Yong Guo, Gérard Maral : "Dispositif numérique degénération de l'enveloppe complexe d'un signal de porteuses modulées en quadrature", No 92-05906. Jean-Pierre Cances, Gérard Maral: "procédéde reconfigurationde
couverture de faisceau d'antenne dans un reseau parsatellite", No
92-10871. US5355138:Antenna
beam coverage reconfiguration Frédéric Dosiere, Gérard Maral : "Interconnexion de satellites a
défilement dans des plans orbitaux distincts parcombinaison de liaisons
inter-satellites et de stations relais au sol ennombre minimal", No
92-10948. US5471641:Telecommunications
network having switching centers for linking satellites Jean-Pierre Cances, Gérard Maral : "Procédé dereconfiguration de
couverture de faisceau d'antenne dans un système de télécommunications par
satellite à réutilisation de fréquence", No 93-15001. US5519404: Method of allocating a
communication channel in a satellite network Joachin Restrepo, Gérard Maral : "Transfert de communication dans une constellation de satellites non géostationnaires", No 96-12349. Gérard Maral, Joachin Restrepo : "Transfert de communication dans une
constellation de satellites non géostationnaires", No 97-02392. |
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Update : July 4, 2004