Study on Optimal Broadcast Ephemeris Parameters for GEO/IGSO Navigation Satellites [PDF]
Sensors, 2020 This paper proposes new sets of suitable broadcast ephemeris parameters for geosynchronous (GEO) and inclined geosynchronous (IGSO) navigation satellites (NSs).
Jin Haeng Choi +3 more
doaj +9 more sources
Evaluation and Anomaly Detection Methods for Broadcast Ephemeris Time Series in the BeiDou Navigation Satellite System [PDF]
SensorsBroadcast ephemeris data are essential for the precision and reliability of the BeiDou Navigation Satellite System (BDS) but are highly susceptible to anomalies caused by various interference factors, such as ionospheric and tropospheric effects, solar ...
Jiawei Cai +3 more
doaj +6 more sources
Galileo Broadcast Ephemeris and Clock Errors Analysis: 1 January 2017 to 31 July 2020 [PDF]
Sensors, 2020 A preliminary analysis of Galileo F/NAV broadcast Clock and Ephemeris is performed in this paper with 43 months of data. Using consolidated Galileo Receiver Independent Exchange (RINEX) navigation files, automated navigation data monitoring is applied ...
María Teresa Alonso +4 more
doaj +9 more sources
Improving BDS broadcast ephemeris accuracy using ground-satellite-link observations [PDF]
Satellite Navigation, 2022 The BeiDou Navigation Satellite System (BDS) employs a hybrid constellation including GEO (Geosynchronous Earth Orbit), IGSO (Inclined Geosynchronous Orbit), and MEO (Medium Earth Orbit) satellites, where the GEO and IGSO satellites are critical to ...
Junping Chen +4 more
doaj +5 more sources
Study on systematic errors of BDS-3 broadcast ephemeris and their effects with Helmert transformation [PDF]
Satellite Navigation, 2023 Previous studies have not evaluated the systematic errors implied in the third generation of BeiDou-3 Navigation Satellite System (BDS-3) broadcast ephemeris.
Min Li +4 more
doaj +4 more sources
Performance Assessment of Non-Integer-Hour Data Blocks in BDS Broadcast Ephemeris [PDF]
IEEE AccessDue to system anomalies, BeiDou navigation satellite system (BDS) sometimes updates the broadcast ephemeris at non-integral hours. The gross errors contained in the non-integer-hour data blocks of broadcast ephemeris will lead to the signal-in-space (SIS)
Jingjing Wang, Chao Zhou
doaj +4 more sources
Real-Time Precise Point Positioning Method Considering Broadcast Ephemeris Discontinuities [PDF]
NavigationWith advancements in the broadcast ephemeris accuracy of global navigation satellite systems (GNSSs), precise point positioning based on broadcast ephemeris (BE-PPP) is gradually showing promising prospects.
Quanrun Cheng +3 more
doaj +4 more sources
Performance of Multi-GNSS in the Asia-Pacific Region: Signal Quality, Broadcast Ephemeris and Precise Point Positioning (PPP) [PDF]
Remote Sensing, 2022 Since BeiDou Navigation Satellite System (BDS) and Japan’s Quasi-Zenith Satellite System (QZSS) have more visible satellites in the Asia-Pacific region, and navigation satellites of Global Positioning System (GPS), Galileo satellite navigation system ...
Mengyuan Li +4 more
doaj +3 more sources
BDS-3 Broadcast Ephemeris Orbit Correction Model Based on Improved PSO Combined with BP Neural Network. [PDF]
Comput Intell Neurosci, 2022 During the operation of navigation satellites, errors in the broadcast ephemeris orbits are caused by the influence of ingress factors and other factors.
Peng J, Liu F, Hu W.
europepmc +4 more sources
Initial Results of Modeling and Improvement of BDS-2/GPS Broadcast Ephemeris Satellite Orbit Based on BP and PSO-BP Neural Networks [PDF]
Remote Sensing, 2021 With the rapid development and gradual perfection of GNSS in recent years, improving the real-time service performance of GNSS has become a research hotspot. In GNSS single-point positioning, broadcast ephemeris is used to provide a space–time reference.
Hanlin Chen +5 more
doaj +3 more sources