Newswise – With the rapid development of technologies such as autonomous driving and robotic navigation, the demand for highly accurate and reliable positioning systems has increased. Traditional systems such as the Global Positioning System (GPS), Global Navigation Satellite System (GLONASS) and Galileo have set high standards, but challenges such as limited regional coverage and long convergence times remain. These issues emphasize the need for advanced navigation satellite systems. BeiDou Navigation Satellite System (BDS) aims to address these challenges by improving its high-precision services, allowing it to become a key player in the global positioning landscape.
Researchers from the Beijing Institute of Tracking and Telecommunication Technology in collaboration with the Shanghai Astronomical Observatory and Wuhan University have published an important finding. Study (DOI: 10.1186/s43020-024-00143-8) In Satellite navigation magazine. Released on June 24, 2024, the study details the high-precision services of the BeiDou system, outlining its current status, achievements and future trajectory.
The study examines Beidou’s high-precision services, focusing on BDS-3’s PPP-B2B, which achieves decimeter-level accuracy within 14 minutes. Despite its progress, BDS-3 lags behind international counterparts such as Galileo’s High Accuracy Service (HAS) and the Centimeter-scale Augmentation Service (CLAS) of the Quasi-Zenith Satellite System (QZSS) in regional coverage and convergence time. To address these limitations, the research proposes a multi-layer development framework, with an emphasis on the integration of low Earth orbit (LEO) satellites. The inclusion of a LEO constellation of 288 satellites can improve positioning accuracy to better than 5 cm within about a minute, increasing global coverage and significantly reducing convergence time. The simulation results demonstrate that LEO-enhanced PPP services can achieve fast and accurate positioning, overcoming current limitations and establishing BeiDou as a leader in high-precision satellite navigation.
Dr. and reduces convergence time, getting us closer to achieving real-time, centimeter-level positioning accuracy on a global scale.”
Advanced BeiDou high-precision services have a profound impact on various applications including autonomous driving, unmanned aerial vehicles, and smart device navigation. The proposed improvements in global coverage and convergence time will enable more accurate and reliable positioning solutions, promoting innovation and efficiency in these areas. This advancement represents an important step in the development of global navigation satellite systems, establishing BeiDou as a leader in high-precision services.
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Reference
DOI
original source url
https://doi.org/10.1186/s43020-024-00143-8
Funding Information
This work was sponsored by the National Natural Science Foundation of China (grant numbers 41974041, 42374044),
About this Satellite navigation
Satellite navigation (e-ISSN: 2662-1363; ISSN: 2662-9291) is the official journal of the Aerospace Information Research Institute, Chinese Academy of Sciences. The purpose of the journal is to report innovative ideas, new results or progress on theoretical techniques and applications of satellite navigation. The journal welcomes original articles, reviews and comments.
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