Comparative analysis of the performance of Multi-GNSS RTK: A case study in Turkey

Atiz, Ömer Faruk; Konukseven, Ceren; Öğütçü, Sermet; Alçay, Salih

doi:10.26833/ijeg.878236

Cited by 6 publications

(4 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…At the moment, the issue of choosing a GNSS constellation to ensure the maximum accuracy of daily positioning is almost unambiguously resolved in favor of GPS without the complex use of other constellations [9,10,12,15]. For analysis, we chose GPS measurements under favorable conditions at 10 stations in Central Asia for 8 days in different seasons.…”

Section: Discussionmentioning

confidence: 99%

“…In RTK mode positioning efficiency was studied with various combinations of GNSS satellites: GPS, GPS + GLONASS, GPS + GLONASS + GALILEO + BeiDou [10]. The coordinates obtained in the GAMIT/GLOBK program during post-processing were used here as a reference.…”

Section: Gnss Data Processingmentioning

confidence: 99%

“…Sometimes multiple GNSS constellations are used in the RTK method. In the best case, RTK accuracy is estimated through RMS = ±1-2 cm, while the maximum RMS ≥ ±5-6 cm [7,10,11]. During GNSS measurements of one position for less than a day, the average deviation of coordinates is ±10 mm (up to ±30 mm), measurements lasting more than a day reduce variations in the station coordinates to ±5 mm [12].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Comparison of Methods for Computing Highly Accurate Daily GNSS Positions

et al. 2023

View full text Add to dashboard Cite

In Central Asia, the level of geodynamic displacements of the Earth's crust does not significantly exceed the accuracy of their measurement methods. Therefore, we need to choose the most accurate methods of calculating coordinates for cosmogeodetic stations. In this work, based on the data of 8 days of GPS measurements at 10 stations, 7 sets of average daily geocentric XYZ coordinates were calculated using different methods. To determine the positions, we used 3 calculation methods in the GAMIT/GLOBK program, 2 methods in the Bernese GNSS software, and 2 web services. To estimate the differences between 7 coordinate sets, we used parameters based on the Euclidean distance between these coordinate samples. The difference analysis of all pair combinations for 7 coordinate sets was carried out by 3D radius vectors, individual coordinate axes, and individual observation stations. The calculations showed that the positioning accuracy and precision depended not only on the coordinate calculation method but also on the selected reference frame. Methods using the international terrestrial reference frame (ITRF) provide station positions with regular deviations of <2 mm and individual deviations up to 5 cm. Methods using the regional and "point" reference frames have regular discrepancies for individual coordinates up to 2 cm and maximum deviations up to 1 m. Converting XYZ coordinates to UVW with the local reference frame reduces the difference between UVW sets by at least 25%. Due to the spatial orientation relative to the studied stations, the X (U) coordinate is reproduced 2-3 times with smaller deviations than other coordinates. The average deviation level of coordinate sets can be an indicator of the quality of conditions for receiving a GNSS signal at one station. We have identified the station group that has a coordinate deviation level several times lower than other stations. Doi: 10.28991/CEJ-2023-09-02-04 Full Text: PDF

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Gnss Data Processingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Comparison of Methods for Computing Highly Accurate Daily GNSS Positions

et al. 2023

View full text Add to dashboard Cite

show abstract

“…The criteria of availability were assessed using the number of valid satellites tracked during the water level monitoring observations. According to Atiz et al (2022), RTK measurements are generally derived from GPS and GLONASS constellations leading to delimitations in accuracy due to satellite geometry restrictions. It was observed during RTK that the base stations, both ZED F9P and NetR9, only used GPS and GLONASS signals as valid sources of measurements, while all GNSS satellite systems are utilized during post-processing.…”

Section: Availabilitymentioning

confidence: 99%

Real-Time Water Level Monitoring Using Low-Cost GNSS Receiver

Dizon,

Peñales,

Reyes

et al. 2024

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci.

View full text Add to dashboard Cite

Abstract. Developing an accurate water level monitoring system is one of the measures to mitigate the effects of water-related hazards such as river flooding. While current monitoring systems in the country are efficient in terms of accurate and immediate data delivery, these systems can be costly. This study assesses the Global Navigation Satellite System (GNSS) performance of low-cost receiver systems for water level monitoring using real-time kinematic (RTK) solution. A total of 10 days’ valid observation were analyzed to compare the two base-rover receiver setups: 1) low-cost base to low-cost rover (LC-LC) and 2) survey-grade base to low-cost rover (SG-LC) grounded on accuracy, integrity, continuity, availability, and cost. Accuracy results show LC-LC=5.81 cm and SG-LC=5.37 cm mean difference of RTK from in-situ readings. In terms of RTK and post-processing kinematic (PPK) difference for integrity criterion, the RTK SG-LC setup has a lower range of RMS of 0.86 to 1.94 cm versus LC-LC setup of 1.19 to 2.28 cm. For the continuity criterion, the average fixed solutions percentage for the LC-LC setup: RTK=91.43%, PPK=92.92%, whereas for the SG-LC: RTK=95.51%, PPK=98.39%. On availability, the number of valid satellites (NSat) and position dilution of precision (PDOP) of RTK and PPK solutions for each setup are LC-LC: RTK=11, PPK=23, PDOP=1.0 and SG-LC: RTK=11, PPK=24, PDOP=1.9. Lastly, in terms of costing, LC-LC costs Php 58,340 while SG-LC costs Php 1,279,645. Overall, the parity of LC-LC with SG-LC in terms of the five criteria suggests viability of using LC-LC for accurate real-time water level monitoring.

show abstract

Establishment of control points using GNSS- RTK technique

Na’aim,

Manaf

2024

E3S Web of Conf.

View full text Add to dashboard Cite

Nowadays, Global Navigation Satellite Systems (GNSS) methods are broadly utilized to determine positions of points. This study was conducted with the aim of determining the positioning of control points at Politeknik Kuching Sarawak Campus using GNSS-RTK Technique. For this purpose, twenty-four control points were established with an average baseline length between Base station and Rover less than 1 km were occupied with Topcon HiPer VR receivers for different time periods. In this study there are situation of positioning under satellite obstruction such as the control points situated in the near buildings. Multipath is a common challenge in GNSS-RTK especially in complex environments. The final result from the Horizontal and Height differences were determined and compared with those measured by both static and RTK surveys. The result of the study shows that GNSS-RTK positioning method ensure high accuracy GNSS position solution within few centimetres.

show abstract

Comparative analysis of the performance of Multi-GNSS RTK: A case study in Turkey

Cited by 6 publications

References 34 publications

Comparison of Methods for Computing Highly Accurate Daily GNSS Positions

Comparison of Methods for Computing Highly Accurate Daily GNSS Positions

Real-Time Water Level Monitoring Using Low-Cost GNSS Receiver

Establishment of control points using GNSS- RTK technique

Contact Info

Product

Resources

About