Low Earth orbit satellite constellation for regional positioning with prolonged coverage durations
T Shtark, P Gurfil - Advances in space research, 2019 - Elsevier
Satellite navigation constellations orbit the Earth in medium and geosynchronous orbits.
Their high altitude provides wide coverage, which may be redundant if only regional …
Their high altitude provides wide coverage, which may be redundant if only regional …
Optimization of satellite orbits with resonant cross-track control
C Gazzino, P Gurfil - Journal of Guidance, Control, and Dynamics, 2019 - arc.aiaa.org
This paper is dedicated to developing a new approach for solving the low-thrust trajectory
optimization problem of spacecraft in low Earth orbits. The unknown control function is …
optimization problem of spacecraft in low Earth orbits. The unknown control function is …
Addition of High-inclination, High-eccentricity Orbit Satellites to Improve QZSS Performance
J WOO, JH JANG, D PARK, S SUNG… - TRANSACTIONS OF THE …, 2023 - jstage.jst.go.jp
At present, Global Navigation Satellite System (GNSS) satellites operate in medium Earth
orbits (MEOs), geostationary orbits (GEOs), or inclined geosynchronous orbits (IGSOs). The …
orbits (MEOs), geostationary orbits (GEOs), or inclined geosynchronous orbits (IGSOs). The …
Capacity enhancement using LEO-QZS MIMO transmission in non-terrestrial network systems
T Shimizu, E Okamoto, A Miura… - IEICE Communications …, 2024 - ieeexplore.ieee.org
In recent years, the demand for satellite communication has increased, and the realization of
a higher capacity has become a challenge. However, the service area of each low-Earth …
a higher capacity has become a challenge. However, the service area of each low-Earth …