Performance Evaluation of Real-Time Precise Point Positioning with Both BDS-3 and BDS-2 Observations

Pan, Lin; Li, Xuanping; Yu, Weiping; Dai, Wujiao; Kuang, Cuilin; Chen, Jun; Chen, Fade; Xia, Pengfei

doi:10.3390/s20216027

Cited by 15 publications

(4 citation statements)

References 39 publications

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“…PPP generally refers to a high-precision positioning technique using a dual-frequency GNSS receiver with pseudo-range observations, carrier phase observations, and products such as precision ephemeris and satellite clock solutions provided by some organizations, such as IGS [ 41 , 42 , 43 ]. In this paper, the PPP solution was performed on the BDS data for all the sites around the world during the reference day and the geomagnetic storm day [ 44 , 45 ].…”

Section: Discussionmentioning

confidence: 99%

A Novel Ionospheric Disturbance Index to Evaluate the Global Effect on BeiDou Navigation Satellite System Signal Caused by the Moderate Geomagnetic Storm on May 12, 2021

Cong

Yue

et al. 2023

Sensors

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In this paper, we propose a new method to quantitatively evaluate the quality of the carrier phase observation signals of the BeiDou Navigation Satellite System (BDS) during weak and moderate geomagnetic storms. We take a moderate geomagnetic storm that occurred on 12 May 2021 during the 25th solar cycle as an example. The results show that the newly defined PAS (Percentage of Affected Satellites) index shows significant anomaly changes during the moderate geomagnetic storm. Its variation trend has good correlations with the geomagnetic storm Kp index and Dst index. The anomaly stations are mainly distributed in the equatorial region and auroral region in the northern and southern hemispheres. The proposed PAS index has a good indication for both BDS2 and BDS3 satellites. We further validated this index by calculating the Precise Point Position (PPP) positioning error. We found that the anomaly period of PAS has strong consistency with the abnormal period of PPP positioning accuracy. This study could provide methodological support for the evaluation of the signal quality and analysis of positioning accuracy for the BeiDou satellite navigation system under different space weather conditions.

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Section: Discussionmentioning

confidence: 99%

A Novel Ionospheric Disturbance Index to Evaluate the Global Effect on BeiDou Navigation Satellite System Signal Caused by the Moderate Geomagnetic Storm on May 12, 2021

Cong

Yue

et al. 2023

Sensors

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“…The key parameters for the asphalt mixture mixing station, raw material transport vehicle, asphalt mixture paver and roller are extracted and collected through the Internet of Things, intelligent sensing and BDS systems. Compared with GPS, which can only accept location information, BDS can realize two-way communication and therefore offers significant benefits [19]. Table 1 provides details on the key monitoring contents of the digital monitoring system.…”

Section: Structure Design Of Information Monitoring Systemmentioning

confidence: 99%

Dynamic Quality Monitoring System to Assess the Quality of Asphalt Concrete Pavement

Zhang

Philbin

et al. 2021

Buildings

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With the rapid development of new technologies, such as big data, the Internet of Things (IoT) and intelligent sensing, the traditional asphalt pavement construction quality evaluation method has been unable to meet the needs of road digital construction. At the same time, the development of such technologies enables a new management system for asphalt pavement construction. In this study, firstly, the dynamic quality monitoring system of asphalt concrete pavement is established by adopting the BeiDou Navigation Satellite System, intelligent sensing, the IoT and 5G technology. This allows key technical indicators to be collected and transmitted for the whole process of asphalt mixture, which includes the mixing plant, transport vehicle, paving and compaction. Secondly, combined with AHP and the entropy weight (EW) method, the index combination weight is calculated. The comprehensive index for the pavement digital construction quality index (PCQ) is proposed to reflect the impact of monitoring indicators on pavement quality. An expert decision-making model is formed by using the improved particle swarm optimization (PSO) algorithm coupled with radial basis function neural network (RBF). Finally, the digital monitoring index and pavement performance index are connected to establish a full-time and multi-dimensional digital construction quality evaluation model. This study is verified by a database created from the digital monitoring data of pavement construction collected from a highway construction project. The system proposed in this study can accurately reflect the quality of pavement digital construction and solve the lag problem existing in the feedback of construction site.

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“…Chen et al, 2013;Hadas & Bosy, 2015;Elsobeiey & Al-Harbi, 2016). The positioning accuracy of real-time PPP based on the BeiDou Navigation Satellite System (BDS) real-time product is 14 cm in kinematic mode and 4 cm in static mode (Pan et al, 2020). Recently, real-time products have been broadcasted via satellites, such as the orbit and clock corrections broadcast by the B2b signal of BDS, enabling users in the Asia-Pacific region to obtain decimeter-level kinematic positioning and centimeter-level static positioning results (Yang et al, 2019(Yang et al, , 2022CSNO, 2020;.…”

Section: Introductionmentioning

confidence: 99%

Real-Time Precise Point Positioning Method Considering Broadcast Ephemeris Discontinuities

Cheng,

Chen,

Zhang,

et al. 2024

navi

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With advancements in the broadcast ephemeris accuracy of global navigation satellite systems (GNSSs), precise point positioning based on broadcast ephemeris (BE-PPP) is gradually showing promising prospects. However, the periodic updates of GNSS ephemeris result in discontinuities in the satellite orbit and clock offset during handovers. These discontinuities can significantly impact positioning accuracy. In this study, we calculate the combined ephemeris discontinuities, which indicate a linear combination of satellite radial orbit and clock discontinuities. We then compensate for the combined ephemeris discontinuities in the subsequent satellite clocks prior to positioning. For BeiDou Navigation Satellite System 3 (BDS-3) and the Global Positioning System (GPS), the three-dimensional (3D) position accuracy in kinematic mode is improved by 30-50 cm, reaching 33.9 cm. For GPS/Galileo/BDS-3 triple-constellation kinematic solutions, the accuracy reaches 23.2 cm. In static mode, the 3D position accuracy is 14.6 cm for BDS-3-only positioning and 15.1 cm for GPS. For GPS/Galileo/BDS-3 triple-constellation static BE-PPP solutions, the 3D position accuracy improves to 8 cm.

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Performance Evaluation of Real-Time Precise Point Positioning with Both BDS-3 and BDS-2 Observations

Cited by 15 publications

References 39 publications

A Novel Ionospheric Disturbance Index to Evaluate the Global Effect on BeiDou Navigation Satellite System Signal Caused by the Moderate Geomagnetic Storm on May 12, 2021

A Novel Ionospheric Disturbance Index to Evaluate the Global Effect on BeiDou Navigation Satellite System Signal Caused by the Moderate Geomagnetic Storm on May 12, 2021

Dynamic Quality Monitoring System to Assess the Quality of Asphalt Concrete Pavement

Real-Time Precise Point Positioning Method Considering Broadcast Ephemeris Discontinuities

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