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Getting closer to everywhere: accurately tracking smartphones indoors / Ramsey Faragher in GPS world, vol 24 n° 10 (October 2013)

Public [article]  inGPS world > vol 24 n° 10 (October 2013) . - pp 43 - 49 Titre : Getting closer to everywhere: accurately tracking smartphones indoors Type de document : Article/Communication Auteurs : Ramsey Faragher, Auteur ; Robert Harle, Auteur Année de publication : 2013 Article en page(s) : pp 43 - 49 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Navigation et positionnement [Termes IGN] accéléromètre [Termes IGN] apprentissage automatique [Termes IGN] gyroscope [Termes IGN] magnétomètre [Termes IGN] microsystème électromécanique [Termes IGN] navigation à l'estime [Termes IGN] navigation pédestre [Termes IGN] odomètre [Termes IGN] positionnement en intérieur [Termes IGN] téléphone intelligent Résumé : (Editeur) [...] What are we to do if we wish to obtain consistently usable positions indoors using a mobile phone? As we will see in this month's column, we can augment or bypass its GPS or GNSS receiver with other unfettered sensing technologies such as gyroscopes and accelerometers. These devices can be made very small using microelectromechanical technology and are already included in some mobile phones. However, there are some issues with these devices for positioning, not the least of which is rapid position drift. We can restrain the drift by using magnetometers, for example - also present in some mobile phones. We can also use radio signals of opportunity to help in the positioning - signals available in the phone such as multi-generation mobile signals, Bluetooth, and Wi-Fi through their signal strength "fingerprints." But is all of this actually feasible? The authors of the article in this month's column have conducted tests of such a multi-system approach to positioning indoors with quite favorable results. Are we at the stage of accurate positioning (and tracking) everywhere? Not quite, but we are getting closer. Numéro de notice : A2013-586 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=32722 [article]

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