Assessment of BDS-3 global positioning service: ephemeris, SPP, PPP, RTK, and new signal

Shi, Junbo; Ouyang, Chenhao; Huang, Yongshuai; Peng, Wenjie

doi:10.1007/s10291-020-00995-y

Cited by 65 publications

(14 citation statements)

References 20 publications

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“…From (14), the model coefficients a and b of the linear fitting of the vehicle angular velocity can be obtained by inverse solution; that is, 4 Mathematical Problems in Engineering…”

Section: Attitude Updating Algorithmmentioning

confidence: 99%

“…In the near-space hypersonic flight, factors such as aerodynamic disturbance, scramjet operation, and steering gear operation affect the accuracy of the SINS of hypersonic vehicles. e Chinese BDS navigation system has become a world-class global navigation satellite system (GNSS) [14,15]. e application of BDS is less in hypersonic vehicles.…”

Section: Introductionmentioning

confidence: 99%

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SINS/BDS Integrated Navigation for Hypersonic Boost-Glide Vehicles in the Launch-Centered Inertial Frame

Chen

Shen

Zhou

et al. 2020

Mathematical Problems in Engineering

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According to the trajectory specialty of hypersonic boost-glide vehicles, a strapdown inertial navigation system/BeiDou navigation satellite system (SINS/BDS) algorithm based on the launch-centered inertial (LCI) frame for hypersonic vehicles is proposed. First, the related frame system, especially the launch earth-centered inertial (LECI) frame, and the SINS mechanization in the LCI frame are introduced. Second, SINS discrete updating algorithms in the LCI frame for the compensation of coning, sculling, and scrolling effects are deduced in the attitude, velocity, and position updating algorithms, respectively. Subsequently, the Kalman filter of the SINS/BDS integrated navigation in the LCI frame is obtained. The method of converting BDS receiver position and velocity from the Earth-centered Earth-fixed (ECEF) frame to the LCI frame is deduced through the LECI frame. Finally, taking the typical hypersonic boost-glide vehicles as the object, the SINS/BDS algorithm vehicle field test and hardware-in-the-loop simulation are performed.

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“…From (14), the model coefficients a and b of the linear fitting of the vehicle angular velocity can be obtained by inverse solution; that is, 4 Mathematical Problems in Engineering…”

Section: Attitude Updating Algorithmmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

SINS/BDS Integrated Navigation for Hypersonic Boost-Glide Vehicles in the Launch-Centered Inertial Frame

Chen

Shen

Zhou

et al. 2020

Mathematical Problems in Engineering

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“…Both the position accuracies and convergence speed of BDS-3/BDS-2 kinematic PPP were improved compared with the BDS-2 kinematic PPP. Based on the datasets from ten stations, Shi et al [ 24 ] also validated the superior performance of BDS-3/BDS-2 PPP in comparison to the BDS-2 PPP. In addition, continuous positioning became feasible for the stations located in Germany and North/South America after introducing the BDS-3 measurements into BDS-2 PPP processing.…”

Section: Introductionmentioning

confidence: 97%

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

Pan

et al. 2020

Sensors

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For time-critical precise applications, one popular technology is the real-time precise point positioning (PPP). In recent years, there has been a rapid development in the BeiDou Navigation Satellite System (BDS), and the constellation of global BDS (BDS-3) has been fully deployed. In addition to the regional BDS (BDS-2) constellation, the real-time stream CLK93 has started to support the BDS-3 constellation, indicating that the real-time PPP processing involving BDS-3 observations is feasible. In this study, the global positioning performance of real-time PPP with BDS-3/BDS-2 observations is initially evaluated using the datasets from 147 stations. In the east, north and upward directions, positioning accuracy of 1.8, 1.2 and 2.5 cm in the static mode, and of 6.7, 5.1 and 10.4 cm in the kinematic mode can be achieved for the BDS-3/BDS-2 real-time PPP, respectively, while the corresponding convergence time with a threshold of 10 cm is 32.9, 23.7 and 32.8 min, and 66.9, 42.9 and 69.1 min in the two modes in the three directions, respectively. To complete this, the availability of BDS-3/BDS-2 constellations, the quality of BDS-3/BDS-2 real-time precise satellite products, and the BDS-3/BDS-2 post-processed PPP solutions are also analyzed. For comparison, the results for the GPS are also presented.

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“…In another previous investigation, the precise products from European Space Agency’s Space Operations Centre (ESA/ESOC) were adopted by some researchers for GPS + GLONASS PPP processing [ 19 ]. The precise products from GFZ or WUM were preferred by some other researchers for multi-GNSS PPP processing [ 20 , 21 , 22 ]. However, previous studies have mostly focused on PPP performance using the precise products of GPS, GLONASS, Galileo, BDS-2, and a comprehensive investigation on the performance of BDS-3 PPP in tropospheric delay retrieval and positioning using different precise products remains unclear.…”

Section: Introductionmentioning

confidence: 99%

An Investigation of Precise Orbit and Clock Products for BDS-3 from Different Analysis Centers

Shen

Fang

et al. 2021

Sensors

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A quality evaluation of precise products for BDS-3 constellations is presented for the first time in this contribution. Then, the tropospheric delay retrieval and positioning performance of BDS-3 precise point positioning (PPP) solutions using the precise products (gbm, wum, iac, sha, cnt) with observations from 24 stations from DOY 280 to 317 in 2020 was comprehensively investigated. The orbit comparisons present consistencies of 0.09–0.22 m for the C19–C37 satellites and of 0.5–1.2 m for the C38–C46 satellites among the final products. The standard deviation (STD) values of the clock differences of iac showed the best agreement with those of gbm, followed by wum, sha. The clock differences performance of cnt was the worst. For BDS-3 PPP solutions with five Analysis centers (ACs) products, the median convergence times of static PPP mode incorporating the gbm, wum, iac, sha, and cnt products were 31.0, 33.5, 34.5, 37.8, and 72.0 min, respectively; the median convergence times of kinematic PPP model incorporating the same products were 40.5, 41.0, 50.5, 55.0, and 94.0 min, respectively. The positioning accuracies in the static and kinematic modes were approximately 1–4 cm, 2–6 cm in the horizontal and vertical components, respectively. With the final products in kinematic mode, the performance of PPP with real-time products (cnt) is poorer than all PPP with final products. The median of ZTD accuracies of the five products gbm, wum, iac, sha, and cnt were 7.84, 7.58, 7.04, 7.19, and 10.1 mm, respectively, and the accuracy differences were very small among five AC products (gbm, wum, iac, sha).

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Assessment of BDS-3 global positioning service: ephemeris, SPP, PPP, RTK, and new signal

Cited by 65 publications

References 20 publications

SINS/BDS Integrated Navigation for Hypersonic Boost-Glide Vehicles in the Launch-Centered Inertial Frame

SINS/BDS Integrated Navigation for Hypersonic Boost-Glide Vehicles in the Launch-Centered Inertial Frame

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

An Investigation of Precise Orbit and Clock Products for BDS-3 from Different Analysis Centers

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