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Sturdy Positioning with High Sensitivity GPS Sensors Under Adverse Conditions
Kozmus Trajkovski, Klemen (Avtor), Sterle, Oskar (Avtor), Stopar, Bojan (Avtor)

URLURL - Predstavitvena datoteka, za dostop obiščite http://drugg.fgg.uni-lj.si/3456/ Novo okno
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Izvleček
High sensitivity GPS receivers have extended the use of GNSS navigation to environments which were previously deemed unsuitable for satellite signal reception. Under adverse conditions the signals become attenuated and reflected. High sensitivity receivers achieve signal reception by using a large number of correlators and an extended integration time. Processing the observation data in dynamic and rapidly changing conditions requires a careful and consistent treatment. Code-based autonomous solutions can cause major errors in the estimated position, due primarily to multipath effects. A custom procedure of autonomous GPS positioning has been developed, boosting the positioning performance through appropriate processing of code and Doppler observations. Besides the common positioning procedures, robust estimation methods have been used to minimise the effects of gross observation errors. In normal conditions, differential GNSS yields good results, however, under adverse conditions, it fails to improve significantly the receiver's position. Therefore, a so-called conditional DGPS has been developed which determines the position differentially by using data from the strong signals only. These custom-developed procedures have been tested in different conditions in static and kinematic cases and the results have been compared to those processed by the receiver.

Jezik:Angleški jezik
Ključne besede:GPS positioning, high sensitivity, GNSS
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:FGG - Fakulteta za gradbeništvo in geodezijo
Leto izida:2010
Založnik:MDPI AG
Št. strani:str. 8332-8347
Številčenje:Letn. 10, št. 9
UDK:528:62
ISSN pri članku:1424-8220
DOI:10.3390/s100908332 Povezava se odpre v novem oknu
COBISS.SI-ID:5104225 Povezava se odpre v novem oknu
Število ogledov:252
Število prenosov:116
Metapodatki:XML RDF-CHPDL DC-XML DC-RDF
 
Skupna ocena:(0 glasov)
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Gradivo je del revije

Naslov:Sensors
Založnik:MDPI
ISSN:1424-8220
COBISS.SI-ID:10176278 Novo okno

Sekundarni jezik

Jezik:Angleški jezik
Ključne besede:določevanje položaja, visoko občutljivi GPS sprejemniki, diferencialni GPS, Dopplerjeva opazovanja, GPS, GNSS

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