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The civilian battlefield protecting GNSS receivers from interference and jamming / M. Jones in Inside GNSS, vol 6 n° 2 (March - April 2011)
[article]
Titre : The civilian battlefield protecting GNSS receivers from interference and jamming Type de document : Article/Communication Auteurs : M. Jones, Auteur Année de publication : 2011 Article en page(s) : pp 40 - 49 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement du signal
[Termes IGN] antenne GNSS
[Termes IGN] anti-leurrage
[Termes IGN] brouillage
[Termes IGN] filtre de Kalman
[Termes IGN] GPS-INS
[Termes IGN] interférence
[Termes IGN] navigation inertielle
[Termes IGN] récepteur GNSSRésumé : (Auteur) Concern about GPS vulnerability has received a great deal of attention recently and for good reason. GNSS receivers are highly susceptible to jamming and spoofing. Historically, signal jamming and the design of equipment to protect against it has been considered primarily as a military problem. Now, signal interference threatens all GNSS receivers, military and civilian. But antenna and receiver design options can mitigate or eliminate the problem.(Auteur) Concern about GPS vulnerability has received a great deal of attention recently ? and for good reason. GNSS receivers are highly susceptible to jamming and spoofing. Historically, signal jamming and the design of equipment to protect against it has been considered primarily as a military problem. Now, signal interference threatens all GNSS receivers, military and civilian. But antenna and receiver design options can mitigate or eliminate the problem. Numéro de notice : A2011-616 Affiliation des auteurs : non IGN Thématique : IMAGERIE/POSITIONNEMENT Nature : Article DOI : sans En ligne : http://www.insidegnss.com/node/2509 Format de la ressource électronique : URL Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=33389
in Inside GNSS > vol 6 n° 2 (March - April 2011) . - pp 40 - 49[article]Réservation
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The civilian battlefield ... - pdf éditeurAdobe Acrobat PDF The GPS assimilator: Upgrading receivers via benign spoofing / T. Humphreys in Inside GNSS, vol 5 n° 4 (June 2010)
[article]
Titre : The GPS assimilator: Upgrading receivers via benign spoofing Type de document : Article/Communication Auteurs : T. Humphreys, Auteur ; J. Bhatti, Auteur ; B. Ledvina, Auteur Année de publication : 2010 Article en page(s) : 9 p. ; pp 50 - 58 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géodésie spatiale
[Termes IGN] anti-leurrage
[Termes IGN] brouillage
[Termes IGN] interférence
[Termes IGN] leurrage
[Termes IGN] récepteur GNSSRésumé : (Auteur) Interference, jamming, and spoofing are increasing the GNSS user community’s concerns about the security and reliability of their receivers. Although solutions are being proposed for future equipment designs that can process multiple signals from multiple GNSS systems, this article introduces a method for upgrading existing GPS user equipment to improve accuracy, robustness, and resistance to spoofing. Numéro de notice : A2010-674 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=33449
in Inside GNSS > vol 5 n° 4 (June 2010) . - 9 p. ; pp 50 - 58[article]Réservation
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The GPS assimilator ... - pdf éditeurAdobe Acrobat PDF Signal authentication: a secure civil GNSS for today / S. Lo in Inside GNSS, vol 4 n° 5 (September - October 2009)
[article]
Titre : Signal authentication: a secure civil GNSS for today Type de document : Article/Communication Auteurs : S. Lo, Auteur ; D. De Lorenzo, Auteur ; P. Enge, Auteur ; et al., Auteur Année de publication : 2009 Article en page(s) : 10 p. ; pp 30 - 39 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Navigation et positionnement
[Termes IGN] anti-leurrage
[Termes IGN] architecture de système
[Termes IGN] authentification
[Termes IGN] brouillage
[Termes IGN] interférence
[Termes IGN] leurrage
[Termes IGN] positionnement par GNSS
[Termes IGN] sécurité
[Termes IGN] signal GPS
[Termes IGN] utilisateur civilRésumé : (Auteur) Many civil GNSS applications need secure, assured information for asset tracking, fleet management and the like. But there is also a growing demand for geosecurity location-based services such as hardware configuration and management, virtual site licenses, digital rights management and geofencing. Unfortunately, GNSS is vulnerable to malicious intrusion and spoofing. How can users be sure the information they receive is authentic? This article introduces a new method that uses hidden attributes fundamental to the GPS satellite broadcast — and cross-compared between two receivers — to authenticate signals and the location solutions they generate. Copyright Gibbons Media & Research LLC Numéro de notice : A2009-668 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=33560
in Inside GNSS > vol 4 n° 5 (September - October 2009) . - 10 p. ; pp 30 - 39[article]Documents numériques
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Signal authentication ... - pdf éditeurAdobe Acrobat PDF Synthetic aperture GPS signal processing: concept and feasibility demonstration / A. Soloviev in Inside GNSS, vol 4 n° 3 (May - June 2009)
[article]
Titre : Synthetic aperture GPS signal processing: concept and feasibility demonstration Type de document : Article/Communication Auteurs : A. Soloviev, Auteur ; F. Van Graas, Auteur ; et al., Auteur Année de publication : 2009 Article en page(s) : 12 p. ; pp 37 - 46 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de géodésie spatiale
[Termes IGN] antenne synthétique
[Termes IGN] atmosphère terrestre
[Termes IGN] brouillage
[Termes IGN] étude de faisabilité
[Termes IGN] interférence
[Termes IGN] signal GPS
[Termes IGN] traitement du signalRésumé : (Auteur) In addition to positioning, navigation and timing, GPS turns out to be a useful sensor for studies of the Earth’s atmosphere. Synthetically generated, phased-array antennas can process GPS signals to create large antenna apertures. The resulting narrow-beam generation capabilities mitigate interference and jamming and produce high-resolution radar images — which could lead to interesting civil and military applications. Copyright Gibbons Media & Research LLC Numéro de notice : A2009-661 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=33567
in Inside GNSS > vol 4 n° 3 (May - June 2009) . - 12 p. ; pp 37 - 46[article]Réservation
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Synthetic aperture GPS ... - scanAdobe Acrobat PDF Interference heads-up: receiver techniques for detecting and characterizing RFI [radio-frequency interference] / P. Ward in GPS world, vol 19 n° 6 (June 2008)
[article]
Titre : Interference heads-up: receiver techniques for detecting and characterizing RFI [radio-frequency interference] Type de document : Article/Communication Auteurs : P. Ward, Auteur Année de publication : 2008 Article en page(s) : pp 64 - 73 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement du signal
[Termes IGN] brouillage
[Termes IGN] interférence
[Termes IGN] rapport signal sur bruit
[Termes IGN] récepteur GNSSRésumé : (Editeur) As we all know, GPS signals are weak. At a receiver's antenna, in the open air, their strength is about-160 dBW or 1 x 10~l6watts. Compare this to a cell-phone signal, which might be 60 dBW or 1 x 10~6 watts, 10 billion times stronger! While code correlation in the receiver lifts the GPS signals above the background noise floor, the signals are still relatively fragile, and building walls and other obstructions can significantly attenuate the received signal power so that they cannot be tracked by a conventional receiver. It is the ratio of the signal power to the noise power per unit band-width that determines the trackability of | the signal. Accordingly, if the receiver's noise floor should increase sufficiently, even in an outdoor environment, the signals may also become untrackable. This can happen when the receiver is subjected to intentional or unintentional radio-frequency interference (RFI) by transmitter operating on or near GPS frequencies. If the interference is strong enough, it can jam the receiver. Although intentional jamming is typically of concern only to military GPS users, unintentional jamming can occur anywhere and any- time and can affect large numbers of users within the range of the jamming transmitter. The jamming incident in San Diego harbor in January 2007, for example, affected all GPS users within a range of about 15 kilometers including a medical services paging network. Such jamming renders a GPS receiver inoperable. But how do users know that their receivers are being jammed and not suffering some other type of malfunction? Clearly it would be advantageous for users to receive a heads-up when jamming signals are present and, if possible, for the receiver to take corrective action automatically. In this month's column, we look at some simple techniques, which can be easily incorporated into the design of a GNSS receiver, to detect, characterize, and actually mitigate RFI. Such receiver enhancements will benefit civilian and military users alike. Copyright Questex Media Group Inc Numéro de notice : A2008-165 Affiliation des auteurs : non IGN Thématique : IMAGERIE/POSITIONNEMENT Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=29160
in GPS world > vol 19 n° 6 (June 2008) . - pp 64 - 73[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 067-08061 RAB Revue Centre de documentation En réserve L003 Disponible Efficiency of carrier-phase integer ambiguity resolution for precise GPS positioning in noisy environments / L. Zhu in Journal of geodesy, vol 81 n° 2 (February 2007)PermalinkApports des techniques de filtrage non linéaire pour la navigation avec les systèmes de navigation inertiels et le GPS / A. Giremus (2005)PermalinkJamming protection of GPS receivers: part 2 antenna enhancements / S. Rounds in GPS world, vol 15 n° 2 (February 2004)PermalinkJamming protection of GPS receivers: part 1 receiver enhancements / S. Rounds in GPS world, vol 15 n° 1 (January 2004)PermalinkJamming GPS: susceptibility of some civil GPS receivers / B. Forssell in GPS world, vol 14 n° 1 (January 2003)PermalinkRadiofrequency interference and GPS: a growing concern / F. Butsch in GPS world, vol 13 n° 10 (October 2002)PermalinkGPS limitations and vulnerabilities / K. de Jong in Geoinformatics, vol 5 n° 3 (01/04/2002)PermalinkLes enjeux de la navigation par satellites / Jean Denègre in Géomètre, vol 2000 n° 11 (novembre 2000)PermalinkSynthetic aperture radar and electronic warfare / W.W. Goj (1993)PermalinkSpatial interference in the AVIRIS imaging spectrometer / J.F. Rose in Photogrammetric Engineering & Remote Sensing, PERS, vol 55 n° 9 (september 1989)Permalink