Results 211 to 220 of about 13,063 (249)

An Ephemeris for Cruisable UAV Pseudolite Navigation System Based on Deep Learning Networks

IEEE Transactions on Aerospace and Electronic Systems
When a pseudolite is used to provide positioning services to users, it needs to provide position information by broadcasting ephemeris parameters. As part of resilient positioning, navigation, and timing (PNT), a UAV pseudolite system can serve users ...
Xin Yang, Wenxiang Liu, Wei Xiao, Xiaozhou Ye, Zongnan Li, Feixue Wang   +5 more
semanticscholar   +1 more source

Single Satellite Emitter Geolocation in the Presence of Oscillator and Ephemeris Errors

IEEE Aerospace Conference, 2020
This paper addresses high-accuracy geolocation of a ground-level, uncooperative RF emitter using a single low earth orbit (LEO) satellite. It is meant to be a real-time, single-pass solution that requires only a few seconds of Doppler and Doppler Rate ...
P. Ellis, F. Dowla
semanticscholar   +1 more source

Dual-Satellite Geolocation With Ephemeris Correction and Uncertainty Mapping

IEEE Transactions on Aerospace and Electronic Systems, 2020
In this paper, we demonstrate that the uncertainty of the dual-satellite ephemeris must be included in order for the geolocation covariance to be accurate. Without the inclusion of this additional error source, the covariance is no longer consistent with
J. Geeraert, J. McMahon
semanticscholar   +1 more source

Evaluation of GPS and BDS-3 broadcast earth rotation parameters: a contribution to the ephemeris rotation error

GPS Solutions, 2023
Wenwen Li, Guo Chen, Min Li, N. Wei, Yubin Wang, Qile Zhao   +5 more
semanticscholar   +1 more source

Ephemeris-01

2019
Ephemeris_01 This is the first volume of the magazine Ephemeris. Ephemeris is a magazine, published on behalf of Physics Forum, Bharathidasan University, Tiruchirappalli. It contains but not limits to, the articles, poems and cartoons created by students of Physics, Bharathidasan University.
openaire   +1 more source

PETREL19: a new numerical solution of planetary and lunar ephemeris

Celestial mechanics & dynamical astronomy, 2023
W. Tian
semanticscholar   +1 more source

Ephemeris Campanographica

Bibliothèque de l'école des chartes, 1910
Léonard Émile-G. Ephemeris Campanographica. In: Bibliothèque de l'école des chartes. 1910, tome 71. pp. 479-480.
openaire   +2 more sources

Assessment of BDS-3 global positioning service: ephemeris, SPP, PPP, RTK, and new signal

GPS Solutions, 2020
Junbo Shi, Chenhao Ouyang, Yongshuai Huang, Wenjie Peng   +3 more
semanticscholar   +1 more source

Ephemeris

2023
openaire   +1 more source

Assessment of dynamical models for transitioning from the Circular Restricted Three-Body Problem to an ephemeris model with applications

Celestial mechanics & dynamical astronomy
Beom Park, Kathleen C. Howell
semanticscholar   +1 more source