Investigation on Accuracies of Real Time Kinematic GPS for GIS Applications

Mekik, Çetin; Arslanoglu, Murat

doi:10.3390/rs1010022

Cited by 42 publications

(25 citation statements)

References 17 publications

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“…The primary observable in DGPS is an unambiguous, but far less accurate measurement known as the pseudorange. Additionally, DGPS is concerned with minimizing correlated errors such that a more accurate absolute position can be estimated, whereas RTK is concerned with dealing with the ambiguities in the carrier phase measurements to provide more accurate relative localization results [12,5,3].…”

Section: Related Workmentioning

confidence: 99%

Accurate real-time relative localization using single-frequency GPS

Hedgecock

Maróti

Lédeczi

et al. 2014

Proceedings of the 12th ACM Conference on Embedded Network Sensor Systems

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For outdoor navigation, GPS provides the most widelyused means of node localization; however, the level of accuracy provided by low-cost receivers is typically insufficient for use in high-precision applications. Additionally, many of these applications do not require precise absolute Earth coordinates, but rather rely on relative positioning to infer information about the geometric configuration of the constituent nodes in a system. This paper presents a novel approach that uses GPS to derive relative location information for a scalable network of single-frequency receivers. Networked nodes share their raw satellite observations, enabling each node to localize its neighbors in a pairwise fashion as opposed to computing its own standalone position. Random and systematic errors are mitigated in novel ways, challenging long-standing beliefs that precision GPS systems require extensive stationary calibration times or complex equipment configurations. In addition to presenting the mathematical basis for our technique, a working prototype is developed, enabling experimental evaluation of several real-world test scenarios. The results of these experiments indicate sub-meter relative positioning accuracy under various conditions and in varying environments. This represents up to order of magnitude increase in precision over existing absolute positioning techniques or other unimodal GPS-based solutions.

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Section: Related Workmentioning

confidence: 99%

Accurate real-time relative localization using single-frequency GPS

Hedgecock

Maróti

Lédeczi

et al. 2014

Proceedings of the 12th ACM Conference on Embedded Network Sensor Systems

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“…The combination of AR, georeferenced 3D virtual worlds such as Geocraft and high precision satellite positioning such as Real Time Kinematic GPS (Mekik and Arslanoglu, 2009) or Precise Point Positioning (Bisnath and Gao, 2007) technology enables a host of new experiences. The real world can now be blended with the virtual world.…”

Section: Augmented Reality and 3d Sensors As A Collaborative Toolmentioning

confidence: 99%

Geocraft as a Means to Support the Development of Smart Cities, Getting the People of the Place Involved - Youth Included -

Scholten¹

2017

QIP Journal

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Purpose: In this paper we present Geocraft, a Geo-ICT framework meant to provide the information needed to support the development of smart cities in an accessible and user-friendly way. We explored whether Geocraft could be an effective way to get the people of the place, especially youth, involved in geospatial issues. Methodology/Approach:Geocraft is a virtual environment in which we import real geospatial data into the gaming environment of the popular computer game Minecraft 1 . In Geocraft, we can run real-time impact models to virtually simulate ánd visualise future developments and their implications, providing the user with relevant information during design processes. Geocraft is linked to Spatial Data Infrastructures (SDIs); data generated or added in Geocraft can upgrade existing databases and SDIs. In four use cases, Geocraft is used by children and high school students to address spatial planning challenges with the help of Geocraft. Findings:Geocraft has an appropriate level of abstraction to effectively represent the real world. The use of Geocraft enhances insight in geospatial relations and can raise awareness and insights in a number of geospatial issues. Geocraft can be used to collect the ideas of citizens, in this case children, and engage them in urban planning issues to raise solutions that can reckon on public support. Geocraft can engage thousands of children working on the same geospatial project in the same online Geocraft world. Spatial scenarios designed in Geocraft can be effectively translated into a feasible spatial design and be We conclude that as an easy to use smart visualisation tool, in which everybody can build future scenarios, Geocraft can be used to get the people of the place involved with geospatial issues.Research Limitation/implication: We present qualitative research results. In the next step, we will investigate how statistically significant the improvements in learning skills are.Originality/Value of paper: This paper presents a new digital environment facilitating citizen participation and educational processes. We use actual spatial data to transform physical reality into a parallel and playable virtual version of that reality. Herein we can simulate spatial processes and support collaboration. By doing so, we can provide unique visualizations of complex processes, raising insights across the borders of disciplines in an user-friendly way.

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“…There is no open data information about the location of trains by Infrastructure Managers or railway undertakings in Spain, but in other countries such as France [17], Great Britain [18] and recently Germany [19] there are different initiatives. Therefore, it has devised a solution that gets this location provided directly by rail users.…”

Section: Future Situationmentioning

confidence: 99%

“…This Comobity version is developed for Android and iOS platforms. There are plenty of works that have been addressed to study the accuracy provided by the various types of GPS receivers [17][18][19]. These studies show that the accuracy depends on vehicle speed, urban or suburban environment, forest, etc.…”

Section: Accuracy Of Gps Positionsmentioning

confidence: 99%

Protection system for level crossings by geospatial analysis in real time

Castaño¹,

García²

2016

WIT Transactions on the Built Environment

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In this work a system has been developed to improve the safety of level crossings. These facilities are located on railways without supervision, in most cases, and they are a source of accidents and deaths every year. The safety system works in two ways in real time.On the one hand, the position of a vehicle on the level crossing is identified, taking into account the vehicle location and the level crossing. If a user declares that the vehicle is immobilized, by pressing a button in the app on board, this sends the location and incident event to the central server, and an alert message, through different channels, is sent to the infrastructure manager.Furthermore, it can alert vehicles approaching a level crossing indicating the distance that is, through text, icons and audio. The vehicle location is computed with a frequency depending on its speed.The system exploits the Comobity system, developed for the Traffic Department (Dirección General de Tráfico, DGT). It consists of an app for Android and iOS devices, which communicates in real time with the central platformThe result is a system that improves the protection of intercepting vehicles left the road in the level crossing for breakdowns, plus improved information to vehicles approaching such facilities. The system can reduce material costs as much in human lives due to such accidents

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Investigation on Accuracies of Real Time Kinematic GPS for GIS Applications

Cited by 42 publications

References 17 publications

Accurate real-time relative localization using single-frequency GPS

Accurate real-time relative localization using single-frequency GPS

Geocraft as a Means to Support the Development of Smart Cities, Getting the People of the Place Involved - Youth Included -

Protection system for level crossings by geospatial analysis in real time

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