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Shifting satellites: GNSS update / Huibert-Jan Lekkerkerk in Geoinformatics, vol 13 n° 1 (01/01/2010)
[article]
Titre : Shifting satellites: GNSS update Type de document : Article/Communication Auteurs : Huibert-Jan Lekkerkerk, Auteur Année de publication : 2010 Article en page(s) : pp 18 - 20 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géodésie spatiale
[Termes IGN] BeiDou
[Termes IGN] constellation GPS
[Termes IGN] Etats-Unis
[Termes IGN] European Geostationary Navigation Overlay Service
[Termes IGN] Galileo
[Termes IGN] Global Orbitography Navigation Satellite System
[Termes IGN] GLONASS System of Differential Correction and Monitoring
[Termes IGN] GPS-Aided Geo Augmented Navigation
[Termes IGN] Quasi-Zenith Satellite System
[Termes IGN] système d'extensionRésumé : (Auteur) The US is planning to reconfigure the GPS constellation to provide a better, 27-satellite geometry over Afghanistan. At the moment 30 GPS satellites are operational but a number of these are located quite close together effectively creating a 24 satellite constellation. With the proposed reconfiguration the currently experienced outages in mountainous Afghanistan could be countered. If the repostioning takes place it would take around six months to complete. Copyright GEOinformatics Numéro de notice : A2010-030 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30226
in Geoinformatics > vol 13 n° 1 (01/01/2010) . - pp 18 - 20[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 262-2010011 SL Revue Centre de documentation Revues en salle Disponible GNSS / Scott Gleason (2009)
Titre : GNSS : applications and methods Type de document : Monographie Auteurs : Scott Gleason, Éditeur scientifique ; Demoz Gebre-Egziabher, Éditeur scientifique Editeur : Londres, Washington : Artech House Année de publication : 2009 Collection : GNSS Technology and applications series Importance : 508 p. Format : 18 x 26 cm - cont. 1 DVD ISBN/ISSN/EAN : 978-1-59693-329-3 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Navigation et positionnement
[Termes IGN] BeiDou
[Termes IGN] centrale inertielle
[Termes IGN] détection du signal
[Termes IGN] Galileo
[Termes IGN] géodésie spatiale
[Termes IGN] Global Navigation Satellite System
[Termes IGN] Global Positioning System
[Termes IGN] GNSS assisté pour la navigation
[Termes IGN] GNSS en mode différentiel
[Termes IGN] GPS-INS
[Termes IGN] interférence
[Termes IGN] logiciel de post-traitement GPS
[Termes IGN] LORAN (système)
[Termes IGN] navigation aérienne
[Termes IGN] navigation inertielle
[Termes IGN] navigation spatiale
[Termes IGN] occultation du signal
[Termes IGN] positionnement différentiel
[Termes IGN] positionnement en intérieur
[Termes IGN] positionnement par GNSS
[Termes IGN] poursuite de satellite
[Termes IGN] radiofréquence
[Termes IGN] récepteur GPS
[Termes IGN] signal GNSS
[Termes IGN] simulation
[Termes IGN] système de numérisation mobile
[Termes IGN] traitement du signal
[Termes IGN] transmission de donnéesIndex. décimale : 30.70 Navigation et positionnement Résumé : (Editeur) Over the past few years, the growth of GNSS applications has been staggering. And, this trend promises to continue in the foreseeable future. Placing emphasis on applications development, this unique resource offers a highly practical overview of GNSS (global navigation satellite systems), including GPS. The applications presented in the book range from the traditional location applications to combining GNSS with other sensors and systems and into more exotic areas, such as remote sensing and space weather monitoring. Written by leading experts in the field, this book presents the fundamental underpinnings of GNSS and provides you with detailed examples of various GNSS applications. Moreover, the software included with the book contains valuable processing tools and real GPS data sets to help you rapidly advance your own work in the field. You will find critical information and tools that help give you a head start to embark on future research and development projects. Note de contenu : - Introduction.
- GNSS Signal Acquisition and Tracking.
- Position, Velocity and Time Estimation.
- Differential GNSS: Accuracy and Integrity.
- A GPS Software Receiver.
- Integration of GNSS and INS.
- GNS/INS Case Studies.
- Integrated LADAR, INS and GNSS Navigation.
- Combining GNSS with RF Systems.
- Aviation Applications.
- Integrated GNSS and Loran Systems.
- Indoor and Weak Signal Navigation.
- Space Applications.
- Geodesy and Surveying.
- Atmospheric Sensing Using GNSS.
- Remote Sensing Using Bistatic GNSS Reflections.
- Epilogue.
- New Navigation Signals and Future Systems in Evolution.Numéro de notice : 20459 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Monographie Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=63026 Réservation
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Code-barres Cote Support Localisation Section Disponibilité 20459-01 30.70 Livre Centre de documentation Géodésie Disponible Double differencing / Huibert-Jan Lekkerkerk in Geoinformatics, vol 11 n° 6 (01/09/2008)
[article]
Titre : Double differencing Type de document : Article/Communication Auteurs : Huibert-Jan Lekkerkerk, Auteur Année de publication : 2008 Article en page(s) : pp 30 - 31 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Navigation et positionnement
[Termes IGN] BeiDou
[Termes IGN] double différence
[Termes IGN] Galileo
[Termes IGN] Global Navigation Satellite System
[Termes IGN] Global Orbitography Navigation Satellite System
[Termes IGN] positionnement cinématique en temps réel
[Termes IGN] positionnement par GalileoRésumé : (Auteur) While researchers from Delft University have annouced the first double-difference measurements from Galileo satellites, the United States is proposing to discontinue the L1 and the L2 P (Y) codes that are currently being used by almost all commercial RTK receivers. Copyright GEOinformatics Numéro de notice : A2008-343 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=29336
in Geoinformatics > vol 11 n° 6 (01/09/2008) . - pp 30 - 31[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 262-08061 SL Revue Centre de documentation Revues en salle Disponible The future is now GPS + GLONASS + SBAS = GNSS / Lambert Wanninger in GPS world, vol 19 n° 7 (July 2008)
[article]
Titre : The future is now GPS + GLONASS + SBAS = GNSS Type de document : Article/Communication Auteurs : Lambert Wanninger, Auteur Année de publication : 2008 Article en page(s) : pp 42 - 48 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géodésie spatiale
[Termes IGN] BeiDou
[Termes IGN] Global Navigation Satellite System
[Termes IGN] positionnement par EGNOS
[Termes IGN] positionnement par Galileo
[Termes IGN] positionnement par GLONASS
[Termes IGN] positionnement par GPS
[Termes IGN] système de positionnement par satellitesRésumé : (Auteur) We are on the brink of a new era in satellite positioning and navigation. The excitement that was felt 30 years ago when the first GPS satellite was launched is beginning to be felt again. Back then, instantaneous three-dimensional satellite-based positioning was an entirely new concept. Yes, we did have satellite-based positioning before GPS, but it wasn't instantaneous and it wasn't fully 3D - nor was it very accurate. Over the past 30 years, thousands of scientists and engineers have developed an amazing range of GPS applications providing positioning accuracies all the way down to the millimeter level. However, some would argue that many of the recent developments, especially in the area of high-accuracy positioning, are just minor enhancements to existing techniques first introduced or foretold years ago. Been there, done that. But that situation is about to change -and in a big way! New signals and new satellites herald a new era in satellite-based positioning and navigation. Russia's Global'naya Navigatsionnaya Sputnikovaya Sistema (GLONASS) is being revitalized after many years of neglect. With its first launch in 1982, this second global navigation satellite system gave rise to the generic term for all such systems : GNSS. In addition to GLONASS and a modernized GPS featuring new civil and military signals along with new constellations of satellites, we will have Europe's Galileo system (with two GIOVE test satellites already in orbit) and China's Beidou/Compass system (with five satellites already in orbit). Receivers and data-processing techniques will be developed to allow use of all available signals and satellites. The future promises to be just as exciting for GNSS scientists and engineers as the early days of GPS. But do we have to wait for these new or enhanced systems to be in place before benefiting from a multi-signal, multi-constellation global navigation satellite system? Definitely not. As this month's column describes, we can sample the future to day. The existing GPS satellites, along with the revitalized GLONASS constellation and the satellites of the various geostationary satellite-based augmentation systems, already constitute a system of systems. And receivers currently on the market provide the necessary raw measurement data to yield positioning solutions from this system of systems with potentially more continuity and greater accuracy than those obtained using GPS alone. Listen up: the future is now. Copyright Questex Media Group Inc Numéro de notice : A2008-299 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=29292
in GPS world > vol 19 n° 7 (July 2008) . - pp 42 - 48[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 067-08071 RAB Revue Centre de documentation En réserve L003 Disponible GNSS update / Huibert-Jan Lekkerkerk in Geoinformatics, vol 11 n° 4 (01/06/2008)
[article]
Titre : GNSS update Type de document : Article/Communication Auteurs : Huibert-Jan Lekkerkerk, Auteur Année de publication : 2008 Article en page(s) : pp 14 - 17 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géodésie spatiale
[Termes IGN] constellation BeiDou
[Termes IGN] constellation Galileo
[Termes IGN] constellation GLONASS
[Termes IGN] constellation GPS
[Termes IGN] Global Navigation Satellite System
[Termes IGN] satellite de positionnementRésumé : (Auteur) On february 22nd 1978 the first block 1 satellite : Navstar 1, was launched which means that february 22nd of this year marked the 30th anniversary of GPS. Navstar, now called GPS has been a military project from the start although there seems to be a gradual shift in government policy giving the civilian sector an increasing voice in GPS. Copyright GEOinformatics Numéro de notice : A2008-238 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=29233
in Geoinformatics > vol 11 n° 4 (01/06/2008) . - pp 14 - 17[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 262-08041 SL Revue Centre de documentation Revues en salle Disponible GNSS update / Huibert-Jan Lekkerkerk in Geoinformatics, vol 10 n° 5 (01/07/2007)PermalinkGalileo arrivera-t-il trop tard ? / Anne Fantuzzi in Géomètre, n° 2037 (mai 2007)PermalinkChina's Beidou navigation project / J. Van Haaften in Geoinformatics, vol 10 n° 1 (01/01/2007)Permalink