Results 211 to 220 of about 8,142 (251)

Analysis of system time performance in BeiDou satellite navigation system

2015 Joint Conference of the IEEE International Frequency Control Symposium & the European Frequency and Time Forum, 2015
As same as other satellite navigation systems, the time difference is considered as one of the basic observations in Beidou satellite navigation system. Therefore, an accurate and stable system time is crucial to realize the system function. Based on the inverse decomposition method, this paper analyzes the requirements of Beidou system time (BDT) on ...
Jun Lu, Ye Ren, Xiaohui Li, Ya Liu, Shougang Zhang   +4 more
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Service Continuity Assessment of Beidou Satellite Navigation System

2019
Beidou satellite navigation system (BDS) is a global satellite navigation system built by China. It will provide global coverage of all-weather, all-time, high accuracy, high reliability positioning, navigation and timing services around 2020. With the development of BDS application, users’ requirements for accuracy, integrity, availability, continuity
Shuo Wang, Rui Xue, Lei Zheng
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High efficiency power amplifier for Beidou satellite navigation system

2015 IEEE 16th International Conference on Communication Technology (ICCT), 2015
In this paper, high efficiency power amplifier for Beidou satellite navigation system is presented. The continuous Class-F PAs will be promising candidate for performances of broadband efficiency and power. Meanwhile, stability networks are also integrated into the layout to prevent low-frequency oscillations.
null Kai Wang, null Zhiqun Cheng, null Kaikai Fan, null Shuai Chen, null Guohua Liu, null Hui Wang   +5 more
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Comparsion between timing methods in BeiDou satellite navigation system

2013 Joint European Frequency and Time Forum & International Frequency Control Symposium (EFTF/IFC), 2013
BeiDou satellite navigation provides the RDSS two-way timing and RNSS timing. In this paper, the basic principles of these two timing methods are illustrated, and the factors which affect the precision for the two methods are analyzed. Compared with the wildly used RNSS timing method, the RDSS timing method can only be used by a limited number of users,
Hai Sha, Pengpeng Li, Jianwei Zhan, Bo Xu, Gang Ou   +4 more
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Performance Monitoring of BeiDou Navigation Satellite System Ionospheric Grid

2015
The correction principle, definition and usage of the ionospheric grid of BeiDou navigation satellite system (BDS) are introduced. Based on the BDS ionospheric grid information received by BDS receivers, and compared with ionosphere delay evaluated using double-frequency measurements, the correction performance of BDS ionospheric grid in different ...
Hui Zhang, Daliang Gong, Mo Wu, He Zhao, Long Bai   +4 more
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Carrier phase multipath mitigation for BeiDou navigation satellite system

GPS Solutions, 2014
As is true of GPS, multipath disturbance is a limiting factor for further improvements in BDS high precision positioning applications. We investigate the characteristics of multipath errors and multipath mitigation for BDS geostationary earth orbit, inclined geosynchronous orbit and medium earth orbit satellites according to their orbital repeat ...
Shirong Ye, Dezhong Chen, Yanyan Liu, Peng Jiang, Weiming Tang, Pengfei Xia   +5 more
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China’s BeiDou Navigation Satellite System: Past Achievements and Future Challenges

Monde chinois, 2021
Le système de navigation par satellites BeiDou a été développé par la Chine de façon autonome afin de remplir des missions tant au plan national qu’international. Si les politiques chinoises déployées aussi bien nationalement que localement concernant le GNSS ont ouvert la voie à l’édification de BeiDou et au développement de ses applications, la ...
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Research on Technical Development of BeiDou Navigation Satellite System

2013
The development characteristics of BeiDou satellite system have been analyzed based on the construction experiences of BeiDou Navigation Satellite regional System. The mission requirement, platform characteristics and payload technology of BeiDou Navigation Satellite have been researched in this paper.
Jun Xie, Tianxiong Liu
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Study on Multipath Effect of GEO Satellite in BeiDou Navigation Satellite System

2016
For BeiDou navigation satellite system, multipath fading from geostationary Earth orbit (GEO) satellites constraints BeiDou receiver to provide a high-precision positioning service, which is not negligible. By designing multipath fading mathematical model, the mechanism of multipath fading is analyzed.
Peng Wu, Baowang Lian, Yulong Song, Zhe Yue   +3 more
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Brief Introduction to the GPS and BeiDou Satellite Navigation Systems

2021
This chapter first gives a brief overview of the GPS system from the macro perspective, then gives a similar overview of China’s independently planned, designed, and implemented BeiDou Satellite Navigation System. Emphasis is placed on the comprehensive description of the satellite constellation, signal system, carrier frequency band, performance index,
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