Results 1 to 10 of about 513,787 (184)

Validation of the EGSIEM-REPRO GNSS Orbits and Satellite Clock Corrections

Remote Sensing, 2020
In the framework of the European Gravity Service for Improved Emergency Management (EGSIEM) project, consistent sets of state-of-the-art reprocessed Global Navigation Satellite System (GNSS) orbits and satellite clock corrections have been generated. The
Rolf Dach, Adrian Jaggi, Arturo Villiger   +2 more
exaly   +3 more sources

THE IMPACT OF ORBITAL AND CLOCK ERRORS ON POSITIONING FROM LEO CONSTELLATIONS AND PROPOSED ORBITAL SOLUTIONS [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2023
Two approaches are discussed for the estimation and prediction of the orbits of low earth orbit (LEO) satellites that can be used for navigation. The first approach relays on using a ground monitoring network of stations.
A. El-Mowafy, K. Wang, K. Wang, Y. Li, Y. Li, A. Allahvirdi-Zadeh   +5 more
doaj   +1 more source

Undifferenced Kinematic Precise Orbit Determination of Swarm and GRACE-FO Satellites from GNSS Observations

Sensors, 2022
Low Earth Orbit (LEO) satellites can be used for remote sensing and gravity field recovery, while precise orbit determination (POD) is vital for LEO satellite applications.
Peng Luo, Shuanggen Jin, Qiqi Shi
doaj   +1 more source

Analysis of Precise Orbit Determination for the HY2D Satellite Using Onboard GPS/BDS Observations

Remote Sensing, 2022
High-precision orbits of Low Earth Orbit (LEO) satellites are essential for many scientific applications, such as assessing the change in current global mean sea level, estimating the coefficients of gravity field, and so on.
Hailong Peng, Chongchong Zhou, Shiming Zhong, Bibo Peng, Xuhua Zhou, Haoming Yan, Jie Zhang, Jinyang Han, Fengcheng Guo, Runjing Chen   +9 more
doaj   +1 more source

Precise orbit determination for a large LEO constellation with inter-satellite links and the measurements from different ground networks: a simulation study

Satellite Navigation, 2022
Geodetic applications of Low Earth Orbit (LEO) satellites requires accurate satellite orbits. Instead of using onboard Global Navigation Satellite System observations, this contribution treats the LEO satellite constellation independently, using Inter ...
Xingchi He, Urs Hugentobler, Anja Schlicht, Yufeng Nie, Bingbing Duan   +4 more
doaj   +1 more source

Studies and Analysis of Combining BDS-3/GNSS Ultra-Rapid Orbit Products from Different IGS Analysis Centers

Remote Sensing, 2022
The third generation of China’s BeiDou Navigation Satellite System (BDS-3) began to provide global service at the end of 2018, and the completion of BDS was announced in July 2020, which includes GEO (Geostationary Earth Orbit), IGSO (Inclined ...
Yangfei Hou, Hu Wang, Jiexian Wang, Hongyang Ma, Yingying Ren, Pengyuan Li, Yafeng Wang   +6 more
doaj   +1 more source

Evolution of Periodic Orbits within the Frame of Formation Satellites

Advances in Astronomy, 2020
In the framework of formation satellites, the periodic orbits of deputy satellite are analyzed when the chief satellite is moving in an elliptical orbit. This analysis is developed on 1- to 10-loop periodic orbits of the deputy satellite.
Elbaz I. Abouelmagd, Mitali J. Doshi, Niraj M. Pathak   +2 more
doaj   +1 more source

Comprehensive Assessment of BDS-2 and BDS-3 Precise Orbits Based on B1I/B3I and B1C/B2a Frequencies from iGMAS

Remote Sensing, 2023
The BeiDou Global Navigation Satellite System (BDS), including the second generation (BDS-2) and the third generation (BDS-3), has been widely used in areas of positioning, navigation, and timing (PNT). One of the essential prerequisites for accurate PNT
Zhetao Zhang, Ping Zeng, Yuanlan Wen, Lina He, Xiufeng He   +4 more
doaj   +1 more source

Orbit Prediction using Broadcast Ephemeris for GLONASS Satellite Visibility Analysis [PDF]

Journal of Astronomy and Space Sciences, 2009
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   +1 more source

Simulation for MSS-2 low-perigee elliptical orbit satellites: an example of lithospheric magnetic field modelling

Earth and Planetary Physics, 2023
A future constellation of at least four geomagnetic satellites (designated Macau Scientific Satellite-1 (MSS-1) and Macau Scientific Satellite-2 (MSS-2)) was recently proposed, to continue high-quality geomagnetic observations in the post-Swarm period ...
Yi Jiang, Nils Olsen, JiaMing Ou, Qing Yan   +3 more
doaj   +1 more source