Comprehensive performance review of BDS-3 after one-year official operation |
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| Institution: | 1. State Key Laboratory of Geo-information Engineering, Xi’an 710054, China;2. Xi’an Research Institute of Surveying and Mapping, Xi’an 710054, China;3. Army Engineering University, Nanjing 210007, China;4. School of Geosciences and Info-Physics, Central South University, Changsha 410083, China;5. Chang’an University, Xi’an 710054, China |
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| Abstract: | On July 31, 2020, the third generation BeiDou Global Satellite Navigation System (BDS-3) was officially put into service. Here we first reviewed the development history of BDS-3, and described the status of BDS-3 constellation, satellite signals, and ground tracking network. Then we expounded the 10 innovations in which BDS-3 differs from the other global satellite navigation systems. In addition, the latest service performance status of BDS-3 was displayed from a comprehensive perspective. The performance of BDS-3 was analyzed and evaluated from five aspects: constellation performance, observation data quality, spatial signal performance, PNT (Positioning, Navigation, and Timing) service performance, and precision positioning application. We used 14 indices to conduct comprehensive assessment of the BDS-3 service performance. Finally, the main direction of the next development of BDS was prospected. |
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| Keywords: | BeiDou Global Satellite Navigation System BDS-3 Service performance Comprehensive assessment Observation accuracy |
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