Performance of Network-Based GNSS Positioning Services in Poland: A Case Study

Próchniewicz, D.; Szpunar, R.; Kozuchowska, Joanna; Szabó, Viktor; Staniszewska, Dominika; Walo, J.

doi:10.1061/(asce)su.1943-5428.0000316

Cited by 9 publications

(7 citation statements)

References 30 publications

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“…The situation and performance of the five nationwide and local permanent GNSS networks in Poland featuring over 500 stations and providing access to NRTK services was assessed by Prochniewicz et al [49]. A comprehensive test was conducted to evaluate the quality of network-based GNSS positioning services' performance provided by all CORS networks available in Poland.…”

Section: Galileo Satellite System and Its Applicability For High-accu...mentioning

confidence: 99%

Assessment of GNSS Galileo Contribution to the Modernization of CROPOS’s Services

Šugar

Kliman

Bačić

et al. 2023

Sensors

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CROPOS, as the Croatian GNSS network, was modernized and upgraded to support the Galileo system in 2019. Two of CROPOS’s services—VPPS (Network RTK service) and GPPS (post-processing service)—were assessed for the contribution of the Galileo system to their performance. A station used for field testing was previously examined and surveyed to determine the local horizon and to carry out a detailed mission planning. The whole day of observation was divided into several sessions, each with a different visibility of Galileo satellites. A special observation sequence was designed: VPPS (GPS-GLO-GAL), VPPS (GAL-only), and GPPS (GPS-GLO-GAL-BDS). All observations were taken on the same station with the same GNSS receiver, Trimble R12. Each static observation session was post-processed in Trimble Business Center (TBC) in two different ways: considering all available systems (GGGB) and considering GAL-only observations. A daily static solution based on all systems (GGGB) was considered as the reference for the accuracy assessment of all obtained solutions. The results obtained with VPPS (GPS-GLO-GAL) and VPPS (GAL-only) were analyzed and assessed; the results obtained with GAL-only have shown a slightly higher scatter. It was concluded that the inclusion of the Galileo system in CROPOS has contributed to the availability and reliability of solutions but not to their accuracy. By complying with the observation rules and taking redundant measurements, the accuracy of GAL-only results can be improved.

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Section: Galileo Satellite System and Its Applicability For High-accu...mentioning

confidence: 99%

Assessment of GNSS Galileo Contribution to the Modernization of CROPOS’s Services

Šugar

Kliman

Bačić

et al. 2023

Sensors

View full text Add to dashboard Cite

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“…The availability of widely dispersed GNSS CORS networks prompted the implementation of the NRTK approach, which allows stations to overcome distance limitations (Wolf and Ghilani 2002), (Rizos 2002), (Shuanggen 2012). (Prochniewicz et al 2020). The utilization of the GNSS CORS network also enables for more reliable differential corrections across large regions, such as the Virtual Reference Station (VRS) technique (Wanninger, 2003), (Mageed, 2013) the Multi Reference Station (MRS) approach (Fotopoulus et al 2001), the Flächen Korrektur Parameter (FKP) approach or other surface correction approaches (Keenan et al, 2002), (Kim et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

“…The utilization of the GNSS CORS network also enables for more reliable differential corrections across large regions, such as the Virtual Reference Station (VRS) technique (Wanninger, 2003), (Mageed, 2013) the Multi Reference Station (MRS) approach (Fotopoulus et al 2001), the Flächen Korrektur Parameter (FKP) approach or other surface correction approaches (Keenan et al, 2002), (Kim et al, 2017). Several authors (Prochniewicz et al, 2020), (Kim et al, 2017), (Dobelis et al 2016) demonstrated that the NRTK technique allows reaching centimeter accuracy, comparable with the accuracy of the static measurements. FKP (area correction parameter) was developed by Geo++ Company, and its detailed information is given by (Wübbena et al 2001, Wübbena and Bagge 2002, Cina et al 2015.…”

Section: Introductionmentioning

confidence: 99%

Network Real Time Kinematic (Cors-FKP Method) Accuracy in/Under Forest Area

Pirti¹,

Kurtulgu²

2023

AgricultForest

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The use of Global navigation satellite system (GNSS), (geolocation and navigation system) in/under forestry is increasingly being established, especially in the areas of logistics, inventory and measurements. However, the uninitialized forest user assumes that GNSS will always work with the same accuracy everywhere, while the more critical foresters assume that GNSS will probably not work properly in/under the forest. A criterion is often used to evaluate the performance of a GNSS receiver in an obstructed environment. Due to tree canopy in a forest, GNSS performance can be limited, disturbed or completely prevented. The Real Time Kinematics (RTK) approach can provide centimetrelevel accuracy in a suitable environment. A more accurate and stable positioning technique was first proposed in the mid-1990s by meticulously modelling all fault components based on a known reference network called the Network Based RTK (NRTK) technique. Since then, several methods have been developed and implemented in practice, such as the Virtual Reference Station (VRS), the Flächen Korrektur Parameter (FKP) and the Master-Auxiliary Concept (MAC), which are fundamentally similar approaches. The purpose of all studies for this paper was to evaluate the achievable accuracy of the Continuously Operating Reference Stations (CORS)-FKP in the project area and check the results. The CORS-FKP results show that the solution for the forest area was reached at cm level (±10-15 cm) for horizontal accuracy.

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“…Enhanced models such as Network-RTK are, in turn, dependent on the accuracy of interpolated ionospheric corrections (Paziewski, 2016;Prochniewicz et al, 2017). In this case, simultaneous processing of the observations from neighboring reference stations allows the retrieval of information on ionospheric delay, which can be applied to support the rover solution (Prochniewicz et al, 2020). However, under the occurrence of ionospheric disturbances, such corrections are degraded (Wielgosz et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

The implications of ionospheric disturbances for precise GNSS positioning in Greenland

Paziewski¹,

Høeg²,

Sieradzki³

et al. 2022

J. Space Weather Space Clim.

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Ionospheric irregularities impair Global Navigation Satellite System (GNSS) signals and, in turn, affect the performance of GNSS positioning. Such effects are especially evident at low and high latitudes, which are currently gaining the attention of research and industry sectors. This study evaluates the impact of ionospheric irregularities on GNSS positioning in Greenland. We assess the performance of positioning methods that meet the demands of a wide range of users. In particular, we address the needs of the users of mass-market single-frequency receivers and those who require a solution of high precision provided by geodetic dual-frequency receivers. We take advantage of the datasets collected during three ionospheric storms: the St. Patrick’s Day storm of March 17, 2015, the storm on June 22, 2015, and another on August 25–26, 2018. We discover a significant impact of the ionospheric disturbances on the ambiguity resolution performance and the accuracy of the float solution in Real Time Kinematics (RTK) positioning. Next, assessing the single-frequency ionosphere-free Precise Point Positioning (PPP), we demonstrate that the model is generally unaffected by ionospheric disturbances. Hence, the model is predestined for the application by the users of single-frequency receivers in the areas of frequent ionospheric disturbances. Finally, based on the observation analyses, we reveal that phase signals on the L2 frequency band are more prone to the cycle slips induced by ionospheric irregularities than those transmitted on the L1. Such signal properties explain a noticeable decline in the dual-frequency RTK performance during the ionospherically disturbed period and merely no effect for the single-frequency ionosphere-free PPP model.

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Performance of Network-Based GNSS Positioning Services in Poland: A Case Study

Cited by 9 publications

References 30 publications

Assessment of GNSS Galileo Contribution to the Modernization of CROPOS’s Services

Assessment of GNSS Galileo Contribution to the Modernization of CROPOS’s Services

Network Real Time Kinematic (Cors-FKP Method) Accuracy in/Under Forest Area

The implications of ionospheric disturbances for precise GNSS positioning in Greenland

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