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Future GPS and Galileo signal / K. de Jong in Geoinformatics, vol 5 n° 6 (01/09/2002)

Public [article]  inGeoinformatics > vol 5 n° 6 (01/09/2002) . - pp 6 - 7 Titre : Future GPS and Galileo signal Type de document : Article/Communication Auteurs : K. de Jong, Auteur Année de publication : 2002 Article en page(s) : pp 6 - 7 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Technologies spatiales [Termes IGN] fiabilité des données [Termes IGN] Galileo [Termes IGN] Global Positioning System [Termes IGN] précision de localisation [Termes IGN] signal Galileo [Termes IGN] signal GPS Résumé : (Auteur) In the june 1999 issue of Geoinformatics, the benefits of Global Positioning System (GPS) signal modernization to the civil GPS community were discussed. With the decision of the European Union (EU) in march this year to develop its own satellite navigation system, Galileo, and have this system operational by 2008, this may be a good opportunity to look again at the modernized GPS and Galileo signals. Numéro de notice : A2002-263 Affiliation des auteurs : non IGN Thématique : IMAGERIE/POSITIONNEMENT Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=22174 [article]

Exemplaires(1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
262-02061	SL	Revue	Centre de documentation	Revues en salle	Disponible

Commercial space imagery revisited with agriculture, the next target area / Gordon Petrie in Geoinformatics, vol 5 n° 6 (01/09/2002)

Public [article]  inGeoinformatics > vol 5 n° 6 (01/09/2002) . - pp 18 - 27 Titre : Commercial space imagery revisited with agriculture, the next target area Type de document : Article/Communication Auteurs : Gordon Petrie, Auteur Année de publication : 2002 Article en page(s) : pp 18 - 27 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Technologies spatiales [Termes IGN] agriculture [Termes IGN] Europe (géographie politique) [Termes IGN] image à haute résolution [Termes IGN] image EROS [Termes IGN] image Ikonos [Termes IGN] image Quickbird Résumé : (Auteur) Since my overview article on commercial highresolution space imagery was published in Geoinformatics oneandahalf years ago, there have been quite a number of developments in this sector. Another highresolution satellite, QuickBird, has been launched successfully to add to IKONOS and EROSA1 All three satellites are now fully operational, so the longheralded competition between the commercial providers of highresolution space imagery is at last taking place. However, this is now bringing to the fore a number of questions about the size and the viability of this particular market and about its continuity. Whatever the answers to these questions, looking to the future, interest within the commercial sector is now being focused on the potential of another rather different technology and market. On the technology side, this would involve the introduction of constellations of small satellites that can produce multispectral. imagery, but of a rather lower ground resolution and providing wider coverage and more frequent revisit times than those of the current highresolution satellites. With regard to the market, the main target area for the resulting imagery would be agriculture. This possibility has been discussed for quite some time, but now circumstances have arisen where it might actually become a reality. Numéro de notice : A2002-264 Affiliation des auteurs : non IGN Thématique : IMAGERIE/POSITIONNEMENT Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=22175 [article]

Exemplaires(1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
262-02061	SL	Revue	Centre de documentation	Revues en salle	Disponible