Performance of BDS-3: Measurement Quality Analysis, Precise Orbit and Clock Determination
AbstractSince 2015, China has successfully launched five experimental BeiDou global navigation system (BDS-3) satellites for expanding the regional system to global coverage. An initial performance assessment and characterization analysis of the BDS-3 is presented. Twenty days of tracking data have been collected from eleven monitoring stations. The tracking characteristics and measurement quality are analyzed and compared with the regional BDS (BDS-2) in terms of observed carrier-to-noise density ratio, pseudo-range multipath, and noise. The preliminary results suggest that the measurement quality of BDS-3 outperforms the BDS-2 for the same type of satellites. In addition, the analysis of multipath combinations reveals that the problem of satellite-induced code biases found in BDS-2 seems to have been solved for BDS-3. Precise orbit and clock determination are carried out and evaluated. The orbit overlap comparison show a precision of 2–6 dm in 3D root mean square (RMS) and 6–14 cm in the radial component for experimental BDS-3 satellites. External validations with satellite laser ranging (SLR) show residual RMS on the level of 1–3 dm. Finally, the performance of the new-generation onboard atomic clocks is evaluated and results confirm an increased stability compared to BDS-2 satellite clocks. View Full-Text
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Xie, X.; Geng, T.; Zhao, Q.; Liu, J.; Wang, B. Performance of BDS-3: Measurement Quality Analysis, Precise Orbit and Clock Determination. Sensors 2017, 17, 1233.
Xie X, Geng T, Zhao Q, Liu J, Wang B. Performance of BDS-3: Measurement Quality Analysis, Precise Orbit and Clock Determination. Sensors. 2017; 17(6):1233.Chicago/Turabian Style
Xie, Xin; Geng, Tao; Zhao, Qile; Liu, Jingnan; Wang, Bin. 2017. "Performance of BDS-3: Measurement Quality Analysis, Precise Orbit and Clock Determination." Sensors 17, no. 6: 1233.
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