PRESKUŠANJE METOD KINEMATIČNE IZMERE GNSS V REALNEM ČASU (GPS IN GPS/GLONASS) NA ZASTRTIH IN NEZASTRTIH LOKACIJAH
TESTING REAL TIME KINEMATIC GNSS (GPS AND GPS/GLONASS) METHODS IN OBSTRUCTED AND UNOBSTRUCTED SITES

Atinc Pirti, Mehmet Ali Yucel, Kutalmis Gumus

DOI: 10.15292/geodetski-vestnik.2013.03.498-512

 

Izvleček:

V tem prispevku je opisan poskus, ki je bil izveden z metodo GNSS – RTK in s katerim naj bi uporabili kombinacijo opazovanj GPS in GLONASS na zastrtih in nezastrtih lokacijah. V študiji se preučuje natančnost in ponovljivost določitve položaja z metodo RTK, ki jo je mogoče doseči ob različnih geometrijskih razporeditvah satelitov in v drugih
različnih razmerah. Praktična izvedba študije je potekala na obalnem območju Samatya v Istanbulu v Turčiji. Opisane so merske metode RTK (GPS in GPS/GLONASS), podana je tudi njihova primerjava na podlagi učinkovitosti in dosegljive natančnosti določitve položaja. Opazovano območje, kontrolne in testne točke ter območje vpliva dreves, na katerem se natančnost določitve položaja zmanjša, so prikazani s programsko opremo AutodeskLandXplorer Studio ProfessionalTM. Rezultati kažejo, da ima pri določitvi položajev z metodo RTK prednost združitev sistemov GPS in GLONASS.

Ključne besede: GPS, koordinate, natančnost, zemljevidi, GLONASS, RTK

 

Abstract:

This paper describes an experiment carried out with the GNSS RTK method to combine GPS and GLONASS measurements in obstructed and unobstructed sites. This study investigates the RTK achievable accuracy and repeatability under different satellite constellations and site conditions in Samatya (coastal area), Istanbul, Turkey. The RTK (GPS and GPS/GLONASS) measurement techniques are described and compared in terms of productivity and precision. Surveyed area, control and test points as well as the impact area of trees where the precision decreases are visualised using Autodesk LandXplorer Studio ProfessionalTM Software. These obtained results indicate that integrating RTK GPS system with GLONASS is favoured for surveying applications.

Keywords: GPS, coordinates, accuracy, maps, GLONASS, RTK

 

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