Results 51 to 60 of about 167 (94)

A Robust Method to Detect BeiDou Navigation Satellite System Orbit Maneuvering/Anomalies and Its Applications to Precise Orbit Determination

Sensors, 2017
The failure to detect anomalies and maneuvering of the orbits of navigation satellite sensors will deteriorate the performance of positioning and orbit determination.
Fei Ye, Yunbin Yuan, Bingfeng Tan, Jikun Ou   +3 more
doaj   +1 more source

A Method to Determine BeiDou GEO/IGSO Orbital Maneuver Time Periods

Sensors, 2019
Because there are different types of BeiDou constellations with participating geostationary orbit (GEO) and inclined geosynchronous orbit (IGSO) satellites, the maneuvering frequency of BeiDou satellites is higher than that of other navigation systems ...
Zhiwei Qin, Guanwen Huang, Qin Zhang, Le Wang, Xingyuan Yan, Yanchao Kang, Xiaolei Wang, Shichao Xie   +7 more
doaj   +1 more source

Analysis of Post-Processed Pseudorange-Based Point Positioning with Different Data Sources for the Current Galileo Constellations

Sensors
The Galileo satellite navigation system now provides initial services. With further satellite launches, the performance of Galileo will gradually improve, and new services will be introduced. This study aims to provide a comprehensive analysis of Galileo
Jiantao Zhang, Weiwei Li
doaj   +1 more source

Galileo broadcast ephemeris and clock errors, and observed fault probabilities for ARAIM

, 2023
(English) The characterization of Clock and Ephemeris error of the Global Navigation Satellite Systems is a key element to validate the assumptions for the integrity analysis of GNSS Safety of Life (SoL) applications. Specifically, the performance metrics of SoL applications require the characterization of the nominal User Range Errors (UREs) as well ...
openaire   +4 more sources

SISRE of BDS-3 MEO: Evolution as Well as Comparison between D1 and B-CNAV (B-CNAV1, B-CNAV2) Navigation Messages

Remote Sensing
The signal-in-space range error (SISRE) has a direct impact on the performance of global navigation satellite systems (GNSSs). It is an important indicator of navigation satellite space server performance.
Zhenghua Dong, Songlin Zhang
doaj   +1 more source

Research on the Fitting Algorithm of GLONASS Broadcast Ephemeris Parameters [PDF]

Proceedings of the 2015 Joint International Mechanical, Electronic and Information Technology Conference, 2015
Luming Quan, Xie xiao Gang
openaire   +1 more source

A Method for Enhancing the Positioning Performance of PPP-B2b by Integrating Galileo Observation

Sensors
The BeiDou-3 (BDS-3) Precise Point Positioning service (PPP-B2b) can realize decimeter-level positioning by broadcasting satellite orbit, clock offset, and code bias corrections via GEO satellites, enabling PPP without reliance on ground communication ...
Xuena Shang, Liwenle Liu, Yilong Yuan, Mengxiang Tong, Qianqian He, Xiaopeng Gong   +5 more
doaj   +1 more source

Broadcast Ephemeris Model of the BeiDou Navigation Satellite System

JOURNAL OF ENGINEERING SCIENCE AND TECHNOLOGY REVIEW, 2017
Xie Xiaogang, Lu Mingquan
openaire   +1 more source

Comparisons of Two Kinds of GPS Broadcast Ephemeris Parameter Algorithms

Chinese Journal of Space Science, 2006
Xianqiang CUI, Wenhai JIAO, Xiaolin JIA, Tao Xian HE   +3 more
openaire   +1 more source

Realtime Precise Orbit Determination Technology for LEO Mega-Constellation

天地一体化信息网络
Supported by GNSS, it analyzed the advantages and disadvantages of solving LEO satellite orbit on the ground or onboard the satellites.The high-fidelity non-conservative force models were applied to the real-time orbit determination algorithm.To separate
Zhen LI, Chuang SHI
doaj   +2 more sources