Improving BDS broadcast ephemeris accuracy using ground-satellite-link observations [PDF]
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 +3 more sources
Study on Optimal Broadcast Ephemeris Parameters for GEO/IGSO Navigation Satellites [PDF]
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 +7 more sources
Different approaches in GLONASS orbit computation from broadcast ephemeris [PDF]
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
An optimal design of the broadcast ephemeris for LEO navigation augmentation systems [PDF]
As the deployment of large Low Earth Orbiters (LEO) communication constellations, navigation from the LEO satellites becomes an emerging opportunity to enhance the existing satellite navigation systems.
Xueli Guo +5 more
doaj +3 more sources
Performance Assessment of Non-Integer-Hour Data Blocks in BDS Broadcast Ephemeris [PDF]
Due 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
Broadcast Ephemeris with Centimetric Accuracy: Test Results for GPS, Galileo, Beidou and Glonass [PDF]
Here we test the capability of the Broadcast Ephemeris Message, in both its GPS-like (Keplerian ellipse with secular and periodic perturbations) and Glonass-like (numerical integration of a 9D state vector) formats, to reproduce a corresponding precise ...
Alessandro Caporali, Joaquin Zurutuza
doaj +4 more sources
Orbit Prediction using Broadcast Ephemeris for GLONASS Satellite Visibility Analysis [PDF]
Even though there are several Global Navigation Satellite Systems under development, only GPS and GLONASS are currently available for satellite positioning.
Hye-In Kim, Kwan-Dong Park
doaj +5 more sources
Velocity and Acceleration of NavIC Satellites using Broadcast Ephemeris [PDF]
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
doaj +3 more sources
A 16-parameter GEO Broadcast Ephemeris [PDF]
Currently, the broadcast ephemerides used in GEOs are same as those of the MEOs and IGSOs in the BeiDou navigation constellation. However, a trade-off strategy, i.e.
Zhongkai ZHANG,Lan DU,Li LIU,Feng HE,Yu LU,Peiyuan ZHOU
doaj +2 more sources
Real-Time Precise Point Positioning Method Considering Broadcast Ephemeris Discontinuities [PDF]
With 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 +3 more sources

