Performance of BDS-3: satellite visibility and dilution of precision

Wang, Minghua; Wang, Jiexian; Dong, Danan; Meng, Lingdong; Chen, Junping; Wang, Ahao; Cui, Haomeng

doi:10.1007/s10291-019-0847-x

Cited by 44 publications

(38 citation statements)

References 22 publications

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“…BDS has full navigation service capability all over the word and it has been transformed from a regional to global navigation system. The performance of BDS will be better when BDS-3 completes the constellation [29]. When compared with GPS, BDS-2/BDS-3, and GLONASS global PDOP, they have basically the same global service performance, except individual regions of the world.…”

Section: Service Areamentioning

confidence: 99%

Assessment of BeiDou-3 and Multi-GNSS Precise Point Positioning Performance

Jiao

Song

et al. 2019

Sensors

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With the launch of BDS-3 and Galileo new satellites, the BeiDou navigation satellite system (BDS) has developed from the regional to global system, and the Galileo constellation will consist of 26 satellites in space. Thus, BDS, GPS, GLONASS, and Galileo all have the capability of global positioning services. It is meaningful to evaluate the ability of global precise point positioning (PPP) of the GPS, BDS, GLONASS, and Galileo. This paper mainly contributes to the assessment of BDS-2, BDS-2/BDS-3, GPS, GLONASS, and Galileo PPP with the observations that were provided by the international Global Navigation Satellite System (GNSS) Monitoring and Assessment System (iGMAS). The Position Dilution of Precision (PDOP) value was utilized to research the global coverage of GPS, BDS-2, BDS-2/BDS-3, GLONASS, and Galileo. In particular, GPS-only, BDS-2-only, BDS-2/BDS-3, GLONASS-only, Galileo-only, and multi-GNSS combined PPP solutions were analyzed to verify the capacity of the PPP performances in terms of positioning accuracy, convergence time, and zenith troposphere delay (ZTD) accuracy. In view of PDOP, the current BDS and Galileo are capable of global coverage. The BDS-2/BDS-3 and Galileo PDOP values are fairly evenly distributed around the world similar to GPS and GLONASS. The root mean square (RMS) of positioning errors for static BDS-2/BDS-3 PPP and Galileo-only PPP are 10.7, 19.5, 20.4 mm, and 6.9, 18.6, 19.6 mm, respectively, in the geographic area of the selected station, which is the same level as GPS and GLONASS. It is worth mentioning that, by adding BDS-3 observations, the positioning accuracy of static BDS PPP is improved by 17.05%, 24.42%, and 35.65%, and the convergence time is reduced by 27.15%, 27.87%, and 35.76% in three coordinate components, respectively. Similar to the static positioning, GPS, BDS-2/BDS-3, GLONASS, and Galileo have the basically same kinematic positioning accuracy. Multi-GNSS PPP significantly improves the positioning performances in both static and kinematic positioning. In terms of ZTD accuracy, the difference between GPS, BDS-2/BDS-3, GLONASS, and Galileo is less than 1 mm, and the BDS-2/BDS-3 improves ZTD accuracy by 20.48% over the BDS-2. The assessment of GPS, BDS-2, BDS-2/BDS-3, GLONASS, Galileo, and multi-GNSS global PPP performance are shown to make comments for the development of multi-GNSS integration, global precise positioning, and the construction of iGMAS.

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Section: Service Areamentioning

confidence: 99%

Assessment of BeiDou-3 and Multi-GNSS Precise Point Positioning Performance

Jiao

Song

et al. 2019

Sensors

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“…It is found that integrated BDS-2/BDS-3 can achieve significantly better positioning performance than GPS in PPP and RTK. In addition, Wang et al [26] analyzed the performance of BDS-3 from satellites visibility and dilution of precision (DOP), and proposed a new method to quantify satellite visibility and DOP. Compared with traditional methods, the estimated number of visible satellites achieves an accuracy better than 0.15, and the estimated DOP values are lower than their reference values by less than 10% on average.…”

Section: Introductionmentioning

confidence: 99%

Performance Assessment of Positioning Based on Multi-Frequency Multi-GNSS Observations: Signal Quality, PPP and Baseline Solution

Qian

et al. 2021

IEEE Access

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“…The BeiDou Navigation Satellite System (BDS) is an integrated navigation and communication system developed and operated by China. It provides the navigation services equivalent to Global Positioning System (GPS) while complementing the shortcomings of the traditional means of communication through the original short message communication service (Yang et al 2018;Wang et al 2019). BDS was developed in three phases.…”

Section: Introductionmentioning

confidence: 99%

Initial assessment of single- and dual-frequency BDS-3 RTK positioning

Yuan

Zhang

2020

Satell Navig

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The BeiDou navigation satellite system with global coverage (BDS-3) has been fully operational since July 2020 and provides comprehensive services to global users. BDS-3 transmits several new navigational signals based on the signals inherited from the BeiDou navigation satellite (regional) system (BDS-2). Previous studies focused on the positioning performance of BDS-2 plus BDS-3 and that of combining BDS-3 and other Global Navigation Satellite Systems (GNSSs), but there was no in-depth discussion on the positioning performance of the BDS-3-only. In this contribution, the BDS-3-only Real-Time Kinematic (RTK) positioning is analysed using the data collected in zero and short baselines in Wuhan, China. The RTK model based on Single-Differenced is first presented, and the BDS-3-only RTK positioning in cases of single and dual-frequencies is evaluated with the model in terms of the empirical integer ambiguity resolution success rates and positioning accuracy. Our numerical tests suggest two major findings. First, the positioning performance for the B1I and B3I retained from BDS-2 and the new frequency B1C is comparable, while that for the new frequency B2a is poorer. Second, the positioning performance of the new frequency combination of the B1C + B2a is not as good as that of the B1C only, owing to the unrealistic stochastic model used.

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Performance of BDS-3: satellite visibility and dilution of precision

Cited by 44 publications

References 22 publications

Assessment of BeiDou-3 and Multi-GNSS Precise Point Positioning Performance

Assessment of BeiDou-3 and Multi-GNSS Precise Point Positioning Performance

Performance Assessment of Positioning Based on Multi-Frequency Multi-GNSS Observations: Signal Quality, PPP and Baseline Solution

Initial assessment of single- and dual-frequency BDS-3 RTK positioning

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