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Performance Analysis of BeiDou-3 Common-View Time Transferring.
- Source :
-
Chinese Astronomy & Astrophysics . Oct2022, Vol. 46 Issue 4, p471-485. 15p. - Publication Year :
- 2022
-
Abstract
- Firstly, four types of BeiDou dual-frequency combined common-view time transferring modes were briefly introduced. The software rnx2cgg, supporting the new signals in BeiDou-3 not included in CGGTTS V2E (Common GNSS (Global Navigation Satellite System) Generic Time Transfer Standard Version 2 Extended), was developed for converting RINEX (Receiver Independent Exchange Format) to CGGTTS. Secondly, the BeiDou timing error models were comprehensively analyzed, including SISRE (Signal-In-Space Ranging Error), pseudorange measurement noise, and DCB (Differential Code Bias). Then, the common-view weighting function was mathematically determined based on the error modes. Finally, the performances of single-station timing and between-station common-view were analyzed with the time transfer experiments between BSNC (Beijing Satellite Navigation Center) and MGEX (The Multi-GNSS Experiment and Pilot Project) stations. The experiments show that, the closure error of the whole link from ground to space is better than 2 ns. The BeiDou common-view noise is about 0.7 ns, corresponding to the time transferring stability of 1 × 10 − 9 / τ in short and medium term over long distance. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 02751062
- Volume :
- 46
- Issue :
- 4
- Database :
- Academic Search Index
- Journal :
- Chinese Astronomy & Astrophysics
- Publication Type :
- Academic Journal
- Accession number :
- 160632102
- Full Text :
- https://doi.org/10.1016/j.chinastron.2022.11.006