Comparing results of online GNSS services: A case study from Turkey

Gunes, Ozge; Demir, D. O.

doi:10.1080/00396265.2021.1893470

Cited by 3 publications

(1 citation statement)

References 22 publications

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“…The GNSS data processing methods have also evolved with scientific and commercial calculation software. This led to the implementation of online GNSS calculation tools [9] and [10].…”

Section: Introductionmentioning

confidence: 99%

Precise Point Positioning and Differential Solutions by Online GNSS Calculation Tools and RTKLIB: A Comparative Study

Diouf¹,

Ndiaye²,

Morel³

2023

IJG

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The recent advances in GNSS positioning of the recent decades have been possible by the development of increasingly efficient software and online calculation tools. The differences between these online PPP calculation tools result in a different level of performance. Our study shows that for 24-hour or 6-hour observation time, the Canadian Spatial Reference System for PPP (CSRS-PPP), CenterPoint RTX Post-Processing (RTX), Magic/GNSS, Institut Geographique National-PPP (IGN-PPP) and RTKLIB tools have almost similar level of performance with International Terrestrial Reference Frame (ITRF) solutions considered as reference solution. Average deviations on the three components X, Y and Z for the different tools compared to ITRF solutions do not exceed 1 cm. However, the CSRS-PPP tool gives deviations of less than 5 mm. Calculations from the observations of 2 h and 1 h show that the RTX and CSRS-PPP tools keep deviations similar to those obtained with 24 h and 6 h, while RTKLIB and IGN-PPP give deviations exceeding 6 cm and sometimes failures of some calculations for IGN-PPP.

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“…The GNSS data processing methods have also evolved with scientific and commercial calculation software. This led to the implementation of online GNSS calculation tools [9] and [10].…”

Section: Introductionmentioning

confidence: 99%

Precise Point Positioning and Differential Solutions by Online GNSS Calculation Tools and RTKLIB: A Comparative Study

Diouf¹,

Ndiaye²,

Morel³

2023

IJG

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Comparative performance analysis of precise point positioning technique in the UAV − based mapping

Erol,

Turan,

Erol

et al. 2024

Measurement

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Developing low-cost automated tool for integrating maps with GNSS satellite positioning data

Habib

Farghal

Taani

2022

Journal of Geodetic Science

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Representing the Earth’s physical features onto a flat surface is a critical and challenging issue for geodesists to build topographic mappings at field scale in various applications. Artificial satellite positioning data are currently defined on a global geocentric frame, while terrestrial geodetic networks are determined on a local ellipsoid. Hence, coordinate transformations in three-dimensional space are required for data fusion involving different coordinate systems utilizing common points in two sets of coordinates. On the other hand, small companies in many developing countries have some data conversion difficulties due to the need for high-cost software and qualified persons. A low-cost automated tool is helpful in achieving this task and ensuring quality and positional accuracy. In this investigation, the problem was undertaken by establishing a software tool in the Microsoft Visual Studio environment for map-matching with global coordinates based on similarity transformations and a conformal polynomial approach. The tool’s performance was evaluated through a numerical example to assign transformation parameters and derive coordinates of checkpoints from the prediction surface.

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Comparing results of online GNSS services: A case study from Turkey

Cited by 3 publications

References 22 publications

Precise Point Positioning and Differential Solutions by Online GNSS Calculation Tools and RTKLIB: A Comparative Study

Precise Point Positioning and Differential Solutions by Online GNSS Calculation Tools and RTKLIB: A Comparative Study

Comparative performance analysis of precise point positioning technique in the UAV − based mapping

Developing low-cost automated tool for integrating maps with GNSS satellite positioning data

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