Velocity and Acceleration of NavIC Satellites using Broadcast Ephemeris [PDF]
International Journal of Mathematical, Engineering and Management Sciences, 2018 The current manuscript describes a methodology to derive velocity and acceleration of NavIC satellites from the broadcast ephemeris. A fourth-order central differencing formula is used to derive NavIC satellites’ Earth-Centred-Earth-Fixed (ECEF) velocity
Bidyut B. Gogoi +3 more
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Study on the Design of Broadcast Ephemeris Parameters for Low Earth Orbit Satellites [PDF]
Remote SensingThe integration of low Earth orbit (LEO) satellite constellations into the Global Navigation Satellite System (GNSS) has emerged as a prominent research focus, as LEO satellites can significantly enhance the precision of GNSS positioning, navigation, and
Dongzhu Liu +4 more
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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
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Galileo Broadcast Ephemeris and Clock Errors Analysis: 1 January 2017 to 31 July 2020. [PDF]
Sensors (Basel), 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 ...
Alonso MT +4 more
europepmc +3 more sources
Estimating Satellite Navigation Broadcast Ephemeris via Inter-Satellite and Ground-to-Satellite Ranging [PDF]
Engineering Proceedings, 2023 This paper investigates the potential of performing orbit determination directly in the Earth-fixed frame based on Inter-Satellite Ranging (ISR) measurements as primary observables, combined with Ground-to-Satellite Ranging (GSR) measurements from a ...
Andrea Testa +4 more
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Real-time PPP algorithm considering hourly discontinuous BDS-3 broadcast ephemeris with covariance-adaptive Kalman filter [PDF]
Satellite NavigationPrevious studies indicate that the accuracy of the BDS-3 broadcast orbit is comparable to that of the real-time precise products provided by International GNSS Service (IGS). However, the precision of both the broadcast orbit and clock remains limited by
Cheng Yang +4 more
doaj +4 more sources
Different approaches in GLONASS orbit computation from broadcast ephemeris [PDF]
Geodetski Vestnik, 2016 Several types of methods can solve equations of satellite motion numerically. These methods are divided into single and multi-step methods. The accuracy of each method depends directly on adopted integration step size between successive iterations.
Kamil Maciuk
doaj +4 more sources
Real-Time Detection of Orbital Maneuvers Using Epoch-Differenced Carrier Phase Observations and Broadcast Ephemeris Data: A Case Study of the BDS Dataset. [PDF]
Sensors (Basel), 2020 The orbital maneuvers of the global navigation satellite system (GNSSs) have a significant influence on the performance of the precise positioning, navigation, and timing (PNT) services.
Tu R +5 more
europepmc +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 +3 more sources
Accuracy Evaluation of Broadcast Ephemeris for BDS-2 and BDS-3 [PDF]
, 2021 The BDS-3 system was completed in July 2020 and began to provide services to users around the world. The inspection of its operation, especially the detailed evaluation of the orbit, clock error, TGD and other indicators, plays an important role in the
Hao Jun Jian, Yishi Wang, Shoujian Zhang
semanticscholar +4 more sources