Results 161 to 170 of about 163,832 (185)

Broadcast vs. precise GPS ephemerides: a historical perspective

GPS Solutions, 2003
David L. M. Warren, John Raquet
semanticscholar   +3 more sources

Precise positioning utilizing smartphone GNSS/IMU integration with the combination of Galileo high accuracy service (HAS) corrections and broadcast ephemerides

GPS Solutions
Ding Yi, Nacer Naciri, Sunil Bisnath
semanticscholar   +3 more sources

Real-time GNSS meteorology: a promising alternative using real-time PPP technique based on broadcast ephemerides and the open service of Galileo

GPS Solutions
Lin Pan, Min Deng, Biyan Chen
semanticscholar   +3 more sources

Effect of broadcast and precise ephemerides on estimates of the frequency stability of GPS Navstar clocks

International Journal of Satellite Communications, 1994
AbstractFrequency stability analysis of on‐orbit Navstar clocks is performed by the Naval Research Laboratory using both the broadcast and the precise post‐processed ephemerides. The phase offset between the Navstar clock and the reference clock is computed from pseudorange measurements obtained by dual‐frequency GPS receivers at the five GPS monitor ...
Thomas B. McCaskill, Wilson G. Reid, James A. Buisson, Hugh E. Warren   +3 more
openalex   +2 more sources

Easy Suite II: easy16 - Comparing GPS Precise and Broadcast Ephemerides

, 2010
Kai Borre
openalex   +2 more sources

Effect of Broadcast ahd Precise Ephemerides on Estimates of the Frequency Stability of GPS NAVSTAR Clocks

, 1993
Thomas B. McCaskill, Wilson G. Reid, James A. Buisson, Hugh E. Warren   +3 more
openalex   +2 more sources

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A Simplified–Modified Algorithm for Glonass Broadcast Orbits Computation

Artificial Satellites
The orbits of Global Navigation Satellite System (GLONASS) satellites are computed from the broadcast ephemerides using the fourth order of the Runge–Kutta integration method.
Medjahed Sid Ahmed
semanticscholar   +1 more source

Obstructed GNSS Positioning Assisted by Opportunistic LEO Doppler Leveraging Real-Time PPP With State-Space Representation

IEEE Sensors Journal
The global navigation satellite system (GNSS) signals may be unexpectedly blocked in complicated environments with severe obscuration or GNSS interference. The Doppler signal of low-Earth-orbit (LEO) satellites can be utilized as a signal of opportunity (
Peng Liu, K. Ling, Honglei Qin, Muyuan Jiang, Jun Lu, Y. L. Guan, Chau Yuen   +6 more
semanticscholar   +1 more source

Real-time precise orbit determination of LEO satellite based on BDS-3 global short message communication: simulation and verification

Measurement science and technology
The increasing utilization of low Earth orbit (LEO) applications necessitates high-precision onboard real-time orbit solutions. However, achieving real-time precise orbit determination (RTPOD) requires precise real-time orbit and clock products ...
Kecai Jiang, Jiangnan Zhang, Xin Xie, Min Li, Yubin Wang, Wenwen Li, Yashi Zhou, Xiaolei Han, Qile Zhao, Jingnan Liu   +9 more
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