A Review of the Applications of Artificial Intelligence in Improving the Performance of Integrated Space-Air and Ground Networks [PDF]
فصلنامه 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
3D Display of Spacecraft Dynamics Using Real Telemetry [PDF]
Journal 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
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Estimation of a General Along-Track Acceleration in the KOMPSAT-1 Orbit [PDF]
Journal 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
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Determining Allowed Positions of Aeronautical-Earth Station in Motion (A-ESIM) Prevent its Frequency Interference in the Fixed Ground Station [PDF]
فصلنامه 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
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Design and Flight Software Embedding of KOMPSAT-2 Simulator [PDF]
Journal 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]
The 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
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Analysis of the Motion of a Tether-Perturbed Satellite [PDF]
Journal of Astronomy and Space Sciences, 2003 The motion of each satellite in a tethered satellite system is non-Keplerian in the Earth's gravitational field. In this paper, the tether perturbation force is formulated and compared with the perturbation force due to the Earth's oblateness.
Sungki Cho, Jaehoon Kim
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SENTINEL-1 BASED FLOOD MAPPING USING INTERFEROMETRIC COHERENCE AND INTENSITY CHANGE DETECTION APPROACH [PDF]
The 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
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Design and Implementation of the Mission Planning Functions for the KOMPSAT-2 Mission Control Element [PDF]
Journal of Astronomy and Space Sciences, 2003 Spacecraft mission planning functions including event prediction, mission scheduling, command planning, and ground track display have been developed for the KOMPSAT-2 mission operations.
Byoung-Sun Lee, Jae-Hoon Kim
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Estimation of the SGP4 Drag Term from Two Osculating Orbit States [PDF]
Journal of Astronomy and Space Sciences, 2003 A method for estimating the NORAD SGP4 atmospheric drag term from minimum osculating orbit states, i.e., two osculating orbits, is developed. The first osculating orbit state is converted into the NORAD TLE-type mean orbit state by iterative procedure ...
Byoung-Sun Lee, Jae-Woo Park
doaj +1 more source