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Design and implementation of a BDS precise point positioning service

Year: 2020
Type: article
Abstract: Precise point positioning (PPP) service is of great significance for BDS. The design and implementation of the service are presented. The PPP-B2b signal of the service is constructed, which is efficient multiplexed with other signal components, and achieves compatibility between two service phases. A customized message format that can augment all visible satellites of four core constellations in mainland China is proposed. The high-gain, 64-ary, low-density parity check (LDPC) coding is used, which facilitates the integrated design of the receivers. A signal quality test has revealed that the S-curve bias (SCB) of PPP-B2b does not exceed 0.0165 ns and the coherence between the code and the carrier of the signal is only 0.137°. A performance evaluation has indicated that at its current stage, the positioning accuracy in the horizontal and vertical directions is better than 0.15 m and 0.3 m, respectively, and the convergence time does not exceed 800 s.
DOI: 10.1002/navi.392
Authors: Cheng Liu, Weiguang Gao, Tianxiong Liu, Dun Wang, Zheng Yao, Yang Gao, Xin Nie, Wei Wang, Dongjun Li, Weixing Zhang, Dongxia Wang, Yongnan Rao
Institutions: Institute of Spacecraft System Engineering, Beijing Satellite Navigation Center, Tsinghua University, Wuhan University, Chinese Academy of Sciences, National Time Service Center
Language: English
Open Access status: hybrid
Estimated APC paid: $3,000
OpenAlex ID: W3092589482
FWCI: 4.028
Cites: 9
Cited by: 41
Related to: 10