Preliminary analysis of the impacts of using more than one GNSS system on precise positioning

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Published: Sep 27, 2019
DOI: https://doi.org/10.35424/rcarto.i92.435
Keywords:
GNSS, Satellite Geometry, Relative Positioning, Precise Point Positioning (PPP)

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Samara Chamorro Navarro Ferreira
Universidade do Estado do Rio de Janeiro
Luiz Paulo Souto Fortes
Universidade do Estado do Rio de Janeiro

Abstract

To obtain precise coordinates in Satellite Geodesy, relative positioning and precise point positioning (PPP) techniques are used. In this worN a preliminary analysis of the impacts on Dilution of Precision (DOP) and positioning accuracy caused by tracNing several GNSS, using single and double frequency receivers, considering two- and 24-hour sessions in two time periods of the year, and, as such, subject to different ionospheric conditions, is presented. These analyses have been performed based on data available from the Brazilian NetworN for Continuous Monitoring of GNSS (RBMC) and the Multi-GNSS Experiment (MGEX) of the International GNSS Service (IGS). The processing results have been obtained using the GNSS Planning Online, IBGE-PPP and RTKLIB software/services, which have confirmed the accuracy improvement in relative and PPP positioning when using more GNSS observations. Another factor which contributes to this improvement is a more favourable satellite constellation used in the solutions. The solar activity, time of year and tracNing period of the day also directly impact the quality of positioning.

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How to Cite
Chamorro Navarro Ferreira, S., & Souto Fortes, L. P. (2019). Preliminary analysis of the impacts of using more than one GNSS system on precise positioning. Revista Cartográfica, (92), 31–51. https://doi.org/10.35424/rcarto.i92.435
Issue
No. 92 (2016): Revista Cartográfica N° 92 (enero-junio 2016) Editora: MSc. Valéria Oliveira Henrique de Araújo
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