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Prime time positioning: using broadcast TV signals to fill GPS acquisition gaps / M. Martone in GPS world, vol 16 n° 9 (September 2005)
[article]
Titre : Prime time positioning: using broadcast TV signals to fill GPS acquisition gaps Type de document : Article/Communication Auteurs : M. Martone, Auteur ; J. Metzler, Auteur Année de publication : 2005 Article en page(s) : pp 52 - 59 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de géodésie spatiale
[Termes IGN] GPS assisté pour la navigation (technologies)
[Termes IGN] position directe
[Termes IGN] positionnement par GPS
[Termes IGN] signal analogique
[Termes IGN] signal GPS
[Termes IGN] signal numérique
[Termes IGN] TELEVISIONRésumé : (Editeur) Television. It features prominently in our living rooms and in our daily lives. It informs us, educates us, and entertains us. And now, thanks to a development at Rosum Corp. in Mountain View, California, TV will also position us. Researchers have devised a way to use terrestrial TV signals, both analog and digital, to determine positions. In a similar fashion to how GPS works, a special receiver can extract timing information from received TV signals to produce pseudo-ranges and, with additional transmitter clock offset information from a server, can determine the horizontal coordinates of the receiver. And since TV signals are quite strong, positions can be obtained inside buildings where conventional GPS and often assisted GPS does not work. In this month's column, we examine TV positioning. Authors from Rosum Corp. describe how the technique works, both standalone and in conjunction with GPS, discuss its advantages and limitations, and how the technique might provide added security for the global position, navigation, and timing infrastructure in these uncertain times. Copyright Questex Media Group Inc Numéro de notice : A2005-583 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=27718
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