Naslov
Kinematic Rail-track Survey by GPS

Autori
Lichtenegger, Herbert ; Bačić, Željko ; Hofmann- Wellenhof, Bernhard

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings of the international symposium on kinematic systems in geodesy, Geomatics and Navigation (KIS94), Banff, Canada, August 30 - September 2, 1994 / Cannon, ME ; Lachapelle, G. - Calgary : Department of Geomatics Engineering The University of Calgary, Canada, 1994, 403-407

Skup
International symposium on kinematic systems in geodesy, Geomatics and Navigation (KIS94), ,

Mjesto i datum
Banff, Kanada, 30.08.1994. - 02.09.1994

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
GPS, kinematic survey, rail-track

Sažetak
High-speed raileay technology requires track survey on a regular basis with millimeter accuracy. In principle, GPS may be an economical alternative to traditional surveying methods in railway engineering. However, three limiting factors must be considered: (1) loss of signal lock will often occur because of topography of trains passing by, and thus, oo- the-fly ambiguity resolution techniques are required, (2) the high reflective environment will often cause multipath which limits the achievable accurcy, and (3) some of the antennas are very sensitive against vertical dynamics (i.e., vertical shocks while tracking) leading to cycle slips which decrease the reliability of GPS for railway engineering.

Izvorni jezik
Engleski

Znanstvena područja
Geodezija, Tehnologija prometa i transport, Zrakoplovstvo, raketna i svemirska tehnika, Interdisciplinarne tehničke znanosti

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