Results 1 to 10 of about 22,923 (213)

Satellite Communications

open access: yesEURASIP Journal on Wireless Communications and Networking, 2008
The call for papers resulted in a high number of submis- sions, from which we have been able to select 12 excellent papers dealing with the different aspects of satellite commu- nications and navigation. Multiple-input multiple-output (MIMO) techniques are attracting a considerable amount of attention from within the terrestrial wireless community. The
Alessandro Vanelli-Coralli   +2 more
doaj   +4 more sources

Trends in satellite communications [PDF]

open access: green2002 IEEE International Conference on Communications. Conference Proceedings. ICC 2002 (Cat. No.02CH37333), 2003
Satellite communications exhibit a tremendous growth due to three main elements: interactivity, coverage and bandwidth asymmetry. The paper explores some of the current trends in the development of next generation satellite systems by analyzing several aspects: from orbital tracks to technology, from services to business opportunities.
DEL RE, ENRICO   +2 more
openaire   +3 more sources

A Review of the Applications of Artificial Intelligence in Improving the Performance of Integrated Space-Air and Ground Networks [PDF]

open access: yesفصلنامه علوم و فناوری فضایی, 2023
According to the technical specifications of the future generations of telecommunication (the fifth generation and later), which should provide new services with very high data rates in the minimum time and a wide coverage, as well as the exponential ...
Pedram Hajipour   +4 more
doaj   +1 more source

Estimation of a General Along-Track Acceleration in the KOMPSAT-1 Orbit [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2002
General along-track acceleration was estimated in the KOMPSAT-1 orbit determination process. Several sets of the atmospheric drag and solar radiation pressure coefficients were also derived with the different spacecraft area.
Byoung-Sun Lee   +2 more
doaj   +1 more source

3D Display of Spacecraft Dynamics Using Real Telemetry [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2002
3D display of spacecraft motion by using telemetry data received from satellite in real-time is described. Telemetry data are converted to the appropriate form for 3-D display by the real-time preprocessor.
Sanguk Lee, Sungki Cho, Jaehoon Kim
doaj   +1 more source

Determining Allowed Positions of Aeronautical-Earth Station in Motion (A-ESIM) Prevent its Frequency Interference in the Fixed Ground Station [PDF]

open access: yesفصلنامه علوم و فناوری فضایی, 2023
Aeronautical-ESIM (A-ESIM) provides a satellite broadband service for aircraft occupants. Due to the frequency sharing of Aeronautical-ESIM (A-ESIM) satellite broadband service with previous ones, there is a possibility of its frequency interference on ...
Roghayeh Doost   +3 more
doaj   +1 more source

Design and Flight Software Embedding of KOMPSAT-2 Simulator [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2002
The design feature of KOMPSAT-2 simulator based on object oriented design methodology in terms of unified modeling language (UML) has been discussed in this paper. Also, we present how to embed flight software into the simulator.
Sanguk Lee, Sungki Cho, Jae Hoon Kim
doaj   +1 more source

COMPARISON OF OPEN SOURCE COMPRESSION ALGORITHMS ON VHR REMOTE SENSING IMAGES FOR EFFICIENT STORAGE HIERARCHY [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016
High resolution level in satellite imagery came with its fundamental problem as big amount of telemetry data which is to be stored after the downlink operation.
A. Akoguz   +6 more
doaj   +1 more source

SENTINEL-1 BASED FLOOD MAPPING USING INTERFEROMETRIC COHERENCE AND INTENSITY CHANGE DETECTION APPROACH [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020
This study presents a semi-automatic algorithm for mapping floods. Both Optical and Synthetic Aperture Radar (SAR) data are used to observe the flood that hit the Cukurova region of Adana (Turkey) in 2019. The performance of the interferometric coherence
I. Papila, U. Alganci, E. Sertel
doaj   +1 more source

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