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Radiofrequency interference and GPS: a growing concern / F. Butsch in GPS world, vol 13 n° 10 (October 2002)
[article]
Titre : Radiofrequency interference and GPS: a growing concern Type de document : Article/Communication Auteurs : F. Butsch, Auteur Année de publication : 2002 Article en page(s) : pp 40 - 50 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géodésie spatiale
[Termes IGN] brouillage
[Termes IGN] bruit (théorie du signal)
[Termes IGN] correction du signal
[Termes IGN] interférence
[Termes IGN] signal GPS
[Termes IGN] traitement du signalRésumé : (Editeur) Over the past couple of years, there has been extensive discussion of the potential interference that ultra-wideband (UWB) radio signals might cause to GPS once UWB devices proliferate across the planet. But GPS is also susceptible to interference from more conventional transmissions both accidental and intentional (jamming). For example, a particular directional television receiving antenna widely available in the consumer market contains an amplifier which can emit spurious radiation in the GPS L1 frequency band with sufficient power to interfere with GPS reception at distances of 200 meters or more. Harmonic emissions from high-power television transmitters might also be a threat to GPS. Furthermore, the GPS L2 frequency is susceptible to interference from out-of-band signals from transmitters operating in the lower part of the 1240 to 1300 MHz band which is shared by terrestrial radiolocation services and amateur radio operators. As for intentional interference, the weak GPS signals can be readily jammed either by hostile forces during conflicts or by hackers who could easily construct a GPS jammer from a surplus home-satellite television receiver. How susceptible are GPS signals to interference and how can such interference be monitored ? Numéro de notice : A2002-394 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=26418
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