An Examination of Network RTK GPS Services in Great Britain

Edwards, Stuart; Clarke, Peter J.; Penna, Nigel T.; Goebell, Sibylle

doi:10.1179/003962610x12572516251529

Cited by 54 publications

(20 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Comparisons of the results of each measurement mode to ALS suggest that the overall shift between the data sets was −2.4 cm. The identical mean results were surprising because other researchers have indicated that reproducible 1.5-3.5 cm GPS height accuracies are obtainable (e.g., [19]). In our test case, VRS measurements exhibited more deviation than did RTK-derived measurements and thus also included larger gross errors.…”

Section: Resultsmentioning

confidence: 65%

Evaluating the Correctness of Airborne Laser Scanning Data Heights Using Vehicle-Based RTK and VRS GPS Observations

et al. 2011

View full text Add to dashboard Cite

Abstract:In this study, we describe a system in which a GPS receiver mounted on the roof of a car is used to provide reference information to evaluate the elevation accuracy and georeferencing of airborne laser scanning (ALS) point clouds. The concept was evaluated in the Klaukkala test area where a number of roads were traversed to collect real-time kinematic data. Two test cases were evaluated, including one case using the real-time kinematic (RTK) method with a dedicated GPS base station at a known benchmark in the area and another case using the GNSSnet virtual reference station service (VRS). The utility of both GPS methods was confirmed. When all test data were included, the mean difference between ALS data and GPS-based observations was −2.4 cm for both RTK and VRS GPS cases. The corresponding dispersions were ±4.5 cm and ±5.9 cm, respectively. In addition, our examination did not reveal the presence of any significant rotation between ALS and GPS data.

show abstract

Section: Resultsmentioning

confidence: 65%

Evaluating the Correctness of Airborne Laser Scanning Data Heights Using Vehicle-Based RTK and VRS GPS Observations

et al. 2011

View full text Add to dashboard Cite

show abstract

“…However, the summed complex amplitudes of the residual semi-diurnal OTL displacements are greater than 1 mm in the horizontal in most of these same areas. These biases, particularly in the vertical, are of only slightly smaller magnitude than the typical errors in baseline and Network RTK GNSS positioning [21,22], and are even more significant in proportion to the positional uncertainty of short-occupation or rapid static relative GNSS. …”

Section: Single-baseline Gnssmentioning

confidence: 84%

Ocean Tide Loading and Relative GNSS in the British Isles

Clarke¹,

Penna²

2010

Survey Review

Self Cite

View full text Add to dashboard Cite

show abstract

“…Such accuracy is acceptable in many types of work, for instance, landscaping, installing of power cables and pipelines. Edwards et al (2010) examined the accuracy of RTK GPS in their work by taking 6 hours data on six stations. They indicated that the accuracy of using this technique is typically 10-20 mm in horizontal control and 15-30 mm in vertical control.…”

Section: -Introductionmentioning

confidence: 99%

A Comparison of RTK-GPS Vertical Component With Precise Digital Level for Estimating Volumes

Zaia

Adam

Gilyana

2017

juod

View full text Add to dashboard Cite

In this research, RTK GPS (Real time Kinematic GPS) was used to compare with precise Digital Level for estimating earthwork volumes. Any volume calculation process has to pass through two stages. Firstly, data collection using surveying instrument, for instance, level instrument, total station, Global Positioning System (GPS), or laser scanning. In the second stage, carrying out measurement of figuring volumes using either manual or computerized method. In this paper, the field test was conducted to gather data for estimating earthworks using two technologies; Digital Level (DNA 03) and RTK GPS. Two sites have been chosen; open to the sky and partially obstructed to satellites in order to evaluate RTK GPS technique. The main aim is to compare the RTK manufacturer claimed accuracy (height component only) with trusted data. The comparison has been carried out using two different categories; first, through using the volume calculation and second via statistical testing through the cloud to cloud comparison. Finding revealed that the mean differences for the test01 and test02 are about -20mm and 16mm, respectively. The Root Mean Square (RMS) and maximum error were found to be about ±63mm, 45cm and ±56 mm, 25cm for test01 and test02, respectively.

show abstract

An Examination of Network RTK GPS Services in Great Britain

Abstract: As of March 2009, network real-time kinematic (RTK) GPS surveying is available in GreatBritain with the aid of two commercial service providers, Leica's "SmartNet" and Trimble's "VRS Now", both

Cited by 54 publications

References 9 publications

Evaluating the Correctness of Airborne Laser Scanning Data Heights Using Vehicle-Based RTK and VRS GPS Observations

Evaluating the Correctness of Airborne Laser Scanning Data Heights Using Vehicle-Based RTK and VRS GPS Observations

Ocean Tide Loading and Relative GNSS in the British Isles

A Comparison of RTK-GPS Vertical Component With Precise Digital Level for Estimating Volumes

Contact Info

Product

Resources

About