Results 61 to 70 of about 2,974 (210)

Applications of Parallel Processing to Astrodynamics [PDF]

International Astronomical Union Colloquium, 1997
AbstractParallel processing is being used to improve the catalog of earth orbiting satellites and for problems associated with the catalog. Initial efforts centered around using SIMD parallel processors to perform debris conjunction analysis and satellite dynamics studies.
S. Coffey, L. Healy, H. Neal
openaire   +1 more source

The evolution of lunar communication—From the beginning to the present

International Journal of Satellite Communications and Networking, Volume 42, Issue 3, Page 200-216, May/June 2024.
Since the beginning of the space age, the Moon has been the target of many missions from the 1950s to the present day. Radio communication plays a fundamental role in space vehicle projects because this is the most obvious way to communicate with the ground station and transmit control commands and scientific data.
Andrea Farkasvölgyi, László Csurgai‐Horváth, Petr Boháček   +2 more
wiley   +1 more source

Some applications of Lie groups in astrodynamics [PDF]

, 1983
Differential equations that arise in astrodynamics are examined from the standpoint of Lie group theory. A summary of the Lie method is given for first degree differential equations.
Jackson, A. A.
core  

A Design Method for Redundant Microthruster Layout With Allocation Error

International Journal of Aerospace Engineering, Volume 2024, Issue 1, 2024.
The microthruster is generally chosen as the actuator of the drag‐free satellite control system, and the layout directly affects the stability of the satellite control. Due to the extremely rigorous objectives of drag‐free control, a design method for the redundant thruster layout is proposed in this paper to improve the control stability of the ...
Mingwei Chen, Chu Zhang, Jianwu He, Chao Yang, Li Duan, Qi Kang, Chuang Liu   +6 more
wiley   +1 more source

Celestial mechanics and astrodynamics /

, 1964
"A selection of technical papers based mainly on the American Institute of Aeronautics and Astronautics Astrodynamics Conference held at New Haven, Connecticut, August 19-21, 1963.Includes ...
Szebehely, Victor Goyzo,1921-1997(viaf)44450236edt, American Institute of Aeronautics and Astronautics Astrodynamics Conference,1963.Yale University   +1 more
core  

Using Electrodynamic Tethers to Create Artificial Sun-Synchronous Orbits and De-Orbit Remote Sensing Satellites

Universe
This paper has the goal of exploring the potential of electromagnetic propulsion systems based on tethers to create artificial Sun-synchronous orbits for remote sensing satellites, as well as performing station-keeping maneuvers and de-orbiting of the ...
Antonio F. B. A. Prado, Vladimir Razoumny   +1 more
doaj   +1 more source

International Reference Systems for Astrodynamics and Space Geodesy

, 2008
The fields of Astrodynamics and Space Geodesy research are experiencing continuous growth. Advancements in science and technology are enabling missions with much more challenging goals. In response, many new techniques have been introduced to solve these
J. Souchay, Folgueira López, Marta, Capitaine, N., N. Capitaine, M. Folgueira, Souchay, J., Folgueira, M.   +6 more
core   +1 more source

Model Predictive Control for Gliding Descent on Mars

Applied Sciences
This paper proposes a closed-loop nonlinear model predictive control for the first time for the trajectory tracking of a spaceplane descending and gliding on Mars.
Jhonathan Murcia-Piñeros, Antônio F. B. A. Prado, Ignazio Dimino   +2 more
doaj   +1 more source

Editorial. [PDF]

J Astronaut Sci, 2021
Akella MR.
europepmc   +2 more sources

Feasibility and Performance of Aerogravity Assists for Ceres Missions

International Journal of Aviation, Aeronautics, and Aerospace
This work investigates the feasibility and performance of aerogravity assist (AGA) maneuvers for missions to Ceres, with emphasis on both interplanetary trajectory design and atmospheric flight dynamics.
Divinaa E Burder
doaj   +1 more source