Results 51 to 60 of about 318 (178)
Earth and Space Science, Volume 11, Issue 9, September 2024.Abstract Accurate knowledge of the amount of diurnal warming present in sea surface temperature (SST) observations at different times and effective depths is important for multiple applications including the production of blended SST analyses. This work explores the ability of a modified Kantha‐Clayson‐type one‐dimensional mixed layer ocean model with ...
Gary A. Wick +3 more
wiley +1 more source
GPS-Based Relative Navigation for Laser Crosslink Alignment in the VISION CubeSat Mission
AerospaceAs the demand for high-speed space-borne data transmission grows, CubeSat-based Free-Space Optical Communication (FSOC) offers a viable solution for achieving a Gbps-speed optical intersatellite link on low-cost platforms.
Yeji Kim +4 more
doaj +1 more source
The zonal satellite problem - I: Near-collision flow [PDF]
Serbian Astronomical Journal, 1998 The force field described by a potential function of the form U = Σn k=1 ak/rk (r = distance between particles, ak = real parameters) models various concrete situations belonging to astronomy, physics, mechanics, astrodynamics, etc. The two-body
Mioc V., Stavinschi M.
doaj +1 more source
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 +2 more
wiley +1 more source
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 +6 more
wiley +1 more source
UniverseThis 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 +1 more
doaj +1 more source
Model Predictive Control for Gliding Descent on Mars
Applied SciencesThis 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 +2 more
doaj +1 more source
Mappings in Astrodynamics [PDF]
Symposium - International Astronomical Union, 1992 We review mappings mainly devised for the study of the dynamics of comets and asteroids. An attempt of a typology according to the method used to devise the mapping and to its deterministic or stochastic character is made.
openaire +1 more source