VRS Virtual Observations Generation Algorithm

Wei, Erhu; Chai, Hongzhou; An, Zhiguo; Liu, Jingnan

doi:10.5081/jgps.5.1.76

Cited by 23 publications

(14 citation statements)

References 2 publications

(1 reference statement)

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“…These normally enclose the roving receiver within their perimeter, although extrapolation outside this zone is also possible. Generally, the roving receivers are required to transmit their approximate coordinates to the network data processing centre enabling the appropriate reference stations to be selected and corrections to be determined, [10]. Clearly, some form of communication is required between the roving receivers and the processing centre; in Great Britain both service providers use existing mobile telecommunication networks.…”

Section: Network Rtk Services In Great Britainmentioning

confidence: 99%

An Examination of Network RTK GPS Services in Great Britain

et al. 2010

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Section: Network Rtk Services In Great Britainmentioning

confidence: 99%

An Examination of Network RTK GPS Services in Great Britain

et al. 2010

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“…These reference stations constantly perform GNSS observations and from these observations, corrections are made for the virtual reference station which is in the vicinity of the rover receiver. Thus, some systematic and non-systematic effects, the dispersive and non-dispersive biases of the rover receiver on RTK measurements are reduced to a minimum [28]. This, unlike the conventional RTK system, increases the reliability of the distance between the rover receiver and reference stations, and the system.…”

Section: Figurementioning

confidence: 99%

A Comparison of the Accuracy of VRS and Static GPS Measurement Results for Production of Topographic Map and Spatial Data: A Case Study on CORS-TR

Tuşat

2018

Teh. vjesn.

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Abstract:The on-going developments in Global Navigation Satellite Systems (GNSS) technology affect techniques in geographic information and associated documents. The national Continuously Operating Reference Station (CORS) networks, which operate on the Real Time Kinematic (RTK) principle, are multi-purpose geodetic networks and offer services to a large portion of society including all the public institutions and other organizations, military and civilian users and to scientific researchers. It is possible to utilize these networks both in real time positioning applications using the Network Real Time Kinematic (NRTK) method and in static applications using the Receiver Independent EXchange (RINEX) format data from reference stations. In this study, Virtual Reference Station (VRS) and static GNSS measurements were undertaken based on a Continuously Operating Reference Station-Turkey (CORS-TR) network in a test network established in Turkey. As a result of the measurements, repeatability attained using the VRS method was examined. Moreover, the coordinates obtained from VRS measurements based on CORS-TR network were compared with the coordinates calculated as a result of static observations. From the accuracies and repeatability, an investigation was implemented to determine the extent to which NRTK applications in real-time GNSS networks can be used to produce spatial data and create topographic maps.

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“…Bu yöntemde, sistematik hatalar azalmakta, referans istasyona olan uzaklık artmakta ve başlangıç belirsizliğini çözme süresi kısalmaktadır. Gezici GNSS alıcısı, sanal referans istasyonu gözlemleri ve düzeltmeleri ile nokta konumları cm mertebesinde belirlemektedir [8,9,19,20,21]. FKP yönteminde ise, referans istasyonunun bulunduğu konum çevresindeki yüzeyler için düzeltme katsayıları hesaplanmakta ve kullanıcılara aktarılmaktadır.…”

Section: Materyal Ve Metotunclassified

Kali̇brasyon Bazinda Farkli Yöntemleri̇n Mesafe Ölçme Hassasi̇yetleri̇ni̇n Karşilaştirilmasi

Gumus

2016

Ömer Halisdemir Üniversitesi Mühendislik Bilimleri Dergisi

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ÖZ COMPARISON OF PRECISIONS OF THE DISTANCE MEASUREMENTS BY DIFFERENT METHODS ON CALIBRATION BASE ABSTRACTSatellite-based measurements have been performed on EDM Calibration Base by Classic GPS, Network RTK and Static GPS methods and terrestrial measurements have been conducted with Total Stations in this study. FKP, VRS and MAC correction methods were used in the Network RTK method. The objective of this study was to make statistical comparisons of distances obtained by using all combinations between different measurement methods. Analysis of Variance (ANOVA) was utilized for this purpose. It was determined that there was a statistically significant difference between the measuring methods used in the one-way ANOVA test. The differences and standard deviations obtaind by the comparison of distances based on different measurement methods between benchmarks have been varied from mm to cm. The results obtained by the static GNSS surveying method are better than the standard deviations obtained by other methods of measurement and equipments when compared. The methods according to the distance measurement precision have been listed from the highest precision to low as Static GNSS, terrestrial surveying, classical RTK, FKP, VRS and MAC respectively. The distance measurement precision of Terrestrial measurement was found to be better than the * Corresponding author / Sorumlu yazar.

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VRS Virtual Observations Generation Algorithm

Cited by 23 publications

References 2 publications

An Examination of Network RTK GPS Services in Great Britain

An Examination of Network RTK GPS Services in Great Britain

A Comparison of the Accuracy of VRS and Static GPS Measurement Results for Production of Topographic Map and Spatial Data: A Case Study on CORS-TR

Kali̇brasyon Bazinda Farkli Yöntemleri̇n Mesafe Ölçme Hassasi̇yetleri̇ni̇n Karşilaştirilmasi

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