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Machine learning approach for predicting precise ZTD produced by GNSS broadcast ephemeris
Global Conference on Consumer Electronics, 2022Precise modelling of tropospheric delay plays an important role of in the precise Global Navigation Satellite System (GNSS) positioning application as well as meteorological studies and weather forecasting.
T. Matsumura +3 more
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Type B Fault Integrity Monitoring for BDS Broadcast Ephemeris
, 2020The integrity and continuity of aircraft precision approach are the most significant performance requirements for aviation users. To ensure positioning integrity of users, it is necessary to detect type B ephemeris fault one of the main integrity risk sources of precision approach.
Liang Li +3 more
semanticscholar +2 more sources
Design and validation of broadcast ephemeris for low Earth orbit satellites
GPS Solutions, 2018Low Earth orbit (LEO) constellations have potentialities to augment global navigation satellite systems for better service performance. The prerequisite is to provide the broadcast ephemerides that meet the accuracy requirement for navigation and positioning.
Xin Xie +5 more
semanticscholar +2 more sources
Developing and validating an optimized 19-parameter broadcast ephemeris model for LEO satellites
Fourth International Conference on Geoscience and Remote Sensing MappingThis study examines the creation of an advanced model for Low Earth Orbit (LEO) satellites within the framework of Global Navigation Satellite Systems (GNSSs).
Ziqi Wang +3 more
semanticscholar +1 more source
2024 4th International Conference on Smart Grid and Energy Internet (SGEI)
Precise Point Positioning (PPP) is a major technique for obtaining high-precision coordinates for grid operations in deep mountainous areas. However, the effects of extrapolation errors for broadcast orbits and clock offsets need to be carefully ...
Junfei Jiang +4 more
semanticscholar +1 more source
Precise Point Positioning (PPP) is a major technique for obtaining high-precision coordinates for grid operations in deep mountainous areas. However, the effects of extrapolation errors for broadcast orbits and clock offsets need to be carefully ...
Junfei Jiang +4 more
semanticscholar +1 more source
Computing satellite velocity using the broadcast ephemeris
GPS Solutions, 2004GPS has been used for applications where satellite velocities are needed as well as satellite positions. Traditionally, the position was determined from noisy code pseudoranges while the velocity came from delta carrier phase measurements. This motivates the need to have a velocity model to accompany the velocity data.
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Periodic analysis and prediction model of broadcast ephemeris orbit error of Beidou-3 satellite
Fourth International Conference on Geoscience and Remote Sensing MappingThe comparison between the satellite orbit coordinates obtained through broadcasting ephemeris calculation by Beidou-3 satellites and precise ephemeris reveals a distinct periodic characteristic in the orbit error.
Zhuopu Zhang +3 more
semanticscholar +1 more source
Analysis and Modeling of GLONASS Broadcast Ephemeris Errors
2012One of the most problems in GNSS application is to obtained high precision ephemeris. In this paper, the error characters of GLONASS broadcast ephemeris (GBE) are analyzed carefully. one week data of all healthy orbiting satellites from GBE are calculated and their errors are figured out.
ChenXi Zhang +4 more
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Survey Review, 2020
In this study, a comprehensive assessment of four-satellite Quasi-Zenith Satellite System (QZSS) constellation is conducted, including the quality of navigation signals, the accuracy of broadcast ephemeris, the availability of satellite constellation ...
Xuanping Li +5 more
semanticscholar +1 more source
In this study, a comprehensive assessment of four-satellite Quasi-Zenith Satellite System (QZSS) constellation is conducted, including the quality of navigation signals, the accuracy of broadcast ephemeris, the availability of satellite constellation ...
Xuanping Li +5 more
semanticscholar +1 more source
Optimal design of broadcast ephemeris parameters for a navigation satellite system
GPS Solutions, 2011Computation of broadcast ephemerides is a fundamental task in satellite navigation and positioning. The GPS constellation is composed of medium-earth-orbit (MEO) satellites, and therefore can employ a uniform parameter set to produce broadcast ephemerides.
Xiaofeng Fu, Meiping Wu
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