Results 71 to 80 of about 1,576,591 (388)
Dynamic Limits on Planar Libration-Orbit Coupling Around an Oblate Primary
, 2012 This paper explores the dynamic properties of the planar system of an ellipsoidal satellite in an equatorial orbit about an oblate primary. In particular, we investigate the conditions for which the satellite is bound in librational motion or when the ...
CM Hartzel +25 more
core +1 more source
Advanced Engineering Materials, EarlyView.Multilayer ferrite inductor prototypes are fabricated by cofiring metallized tapes of NiCuZn ferrite and glass‐ceramic composite. Prerequisites for a predictive component simulation are discussed. An automated data‐pipeline stores and semantically links the experimental data acquired in the study according to a domain ontology.
Björn Mieller +8 more
wiley +1 more source
Modelling and Preliminary Prediction of Thermal Balance Test for COMS
Journal of Astronomy and Space Sciences, 2009 COMS (Communication, Ocean and Meteorological Satellite) is a geostationary satellite and developed by KARI for communication, ocean and meteorological observations.
Hyoung Yoll Jun +2 more
doaj +1 more source
Attitude and In-orbit Residual Magnetic Moment Estimation of Small Satellites Using only Magnetometer [PDF]
arXiv, 2021 Attitude estimation or determination is a fundamental task for satellites to remain effectively operational. This task is furthermore complicated on small satellites by the limited space and computational power available on-board. This, coupled with a usually low budget, restricts small satellites from using high precision sensors for its especially ...
arxiv
Advanced Engineering Materials, EarlyView.This manuscript presents advances in digital transformation within materials science and engineering, emphasizing the role of the MaterialDigital Initiative. By testing and applying concepts such as ontologies, knowledge graphs, and integrated workflows, it promotes semantic interoperability and data‐driven innovation. The article reviews collaborative
Bernd Bayerlein +44 more
wiley +1 more source
Performance of Angle of Arrival Detection Using MUSIC Algorithm in Inter-Satellite Link [PDF]
, 2018 An attitude of satellite is not always static, sometimes it moves randomly and the antenna pointing of satellite is harder to achieve line of sight communication to other satellite when it is outage by tumbling effect. In order to determine an appropriate direction of satellite antenna in inter-satellite link, this paper analyze estimation performance ...
arxiv +1 more source
Satellite communication system and method Patent [PDF]
, 1970 Earth satellite relay station for frequency multiplexed voice ...
Darcey, R. J.
core +1 more source
Advanced Engineering Materials, EarlyView.This study explores a process chain to produce dispersoid‐strengthened CuCr1Zr for applications requiring high strength and conductivity. Using gas‐atomized powder and copper‐plated alumina nanoparticles, additive manufacturing is performed via powder bed based additive manufacturing with green and red lasers, followed by heat treatment.
Heinrich von Lintel +7 more
wiley +1 more source
A Study on Fuel Estimation Algorithms for a Geostationary Communication & Broadcasting Satellite [PDF]
Journal of Astronomy and Space Sciences, 2000 It has been developed to calculate fuel budget for a geostationary communication and broadcasting satellite. It is quite essential that the pre-launch fuel budget estimation must account for the deterministic transfer and drift orbit maneuver ...
Jong Won Eun
doaj
Lasers for coherent optical satellite links with large dynamics
, 2013 We present the experimental realization of a laser system for ground to satellite optical Doppler ranging at the atmospheric turbulence limit. Such a system needs to display good frequency stability (a few parts in 10^{-14}) whilst allowing large and ...
Acef, Ouali +4 more
core +2 more sources