Results 31 to 40 of about 35,279 (308)
Design of Satellite Operations Subsystem Using Dynamic Fault Management Mechanism [PDF]
Journal of Astronomy and Space Sciences, 1998 Satellite Operations Subsystem in the Mission Control Element provides real-time monitoring of the satellite status and transmits telecommands to control the satellite during the contact time.
Jaehoon Kim, Heesook Mo, Woonchan Jung
doaj
Design and Implementation of Hitl Simulator Coupleing Communications Payload and Software Spacecraft Bus [PDF]
Journal of Astronomy and Space Sciences, 2003 Engineering qualification model payload for a communications and broadcasting satellite(CBS) was developed by ETRI from May, 2000 to April, 2003. For the purpose of functional test and verification of the payload, a real-time hardware-in-the-loop(HITL ...
In-Jun Kim, Wan-Sik Choi
doaj +1 more source
NORAD TLE Type Orbit Determination of LEO Satellites Using GPS Navigation Solutions [PDF]
Journal of Astronomy and Space Sciences, 2002 NORAD Two Line Elements (TLE) are widely used for the increasing number of small satellite mission operations and analysis. However, due to the irregular periodicity of generation of the NORAD TLE, a new TLE that is independent of NORAD is required.
Chang-Hwa Cho +4 more
doaj +1 more source
EAI Endorsed Transactions on Mobile Communications and Applications, 2017 The state of insecurity occasioned by fraudulent practices in Africa has been of concern economically, both at home and abroad. In this paper, we propose ways to mitigate this problem, using Nigeria as a case study.
M.I. Adeka +8 more
doaj +1 more source
BSM Integrated PEP with Cross-Layer Improvements [PDF]
, 2009 The future development of broadband satellite systems providing services based on the Internet Protocol (IP) needs to be stimulated by means of common standards. This paper presents the ETSI BSM PEP terminal architecture and PEP usage scenarios.
Berioli M. +15 more
core +1 more source
Cyclic Olefin Copolymers as Versatile Materials for Advanced Engineering Applications
Advanced Functional Materials, EarlyView.Cyclic olefin copolymers (COCs) are presented as highly versatile materials combining tunable synthesis, excellent optical properties, and mechanical robustness. Their potential spans microfluidics, bioengineering, and advanced electronics, while emerging self‐healing and sustainable solutions highlight future opportunities.
Giulia Fredi +3 more
wiley +1 more source
Signal processing techniques for aeronautical communications via satellite [PDF]
, 2005 Aeronautical communications are playing an important role in the air traffic control as well as new passenger communication services. Due to the global coverage required, satellite transponders provide the required links which are traditionally limited ...
P. Fines +5 more
core +1 more source
Advanced Materials, EarlyView.AI‐Assisted Workflow for (Scanning) Transmission Electron Microscopy: From Data Analysis Automation to Materials Knowledge Unveiling. Abstract (Scanning) transmission electron microscopy ((S)TEM) has significantly advanced materials science but faces challenges in correlating precise atomic structure information with the functional properties of ...
Marc Botifoll +19 more
wiley +1 more source
Analytical Study on Mission Control Element System Availability for Korea Multipurpose Satellite (KOMPSAT) I [PDF]
Journal of Astronomy and Space Sciences, 1998 To estimate the availability of the MCE for KOMPSAT I, mathematical models of H/W and S/W availability, the availability estimating methods for parallel and redundant system were presented. Furthermore, to improve and estimate the MCE system availability,
J. W. Eun, D. I. Chang, J. M. Kim
doaj
Comparison of Landscape Metrics for Three Different Level Land Cover/Land Use Maps
ISPRS International Journal of Geo-Information, 2018 This research aims to investigate how different landscape metrics are affected by the enhancement of the thematic classes in land cover/land use (LC/LU) maps.
Elif Sertel +4 more
doaj +1 more source