Design of Mega LEO Constellations for Continuous Coverage over Pakistan

J. Qureshi ()
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J. Qureshi: Department of Space Science, University of the Punjab Lahore Pakistan

International Journal of Innovations in Science & Technology, 2023, vol. 5, issue 1, 82-93

Abstract: Satellite communication was effectively done in Geostationary Earth Orbit (GEO) in the past years. Recently the trend has shifted from GEO to Low Earth Orbit (LEO). The objective of our study is to propose a satellite constellation for Pakistan in LEO that will provide continuous coverage over Pakistan. As LEO is much closer to the earth as compared to other orbits such as GEO and High Earth Orbit (HEO) etc. one can achieve benefits like low latency rate, less fuel consumption,and signal transmission loss. In ongoing research,an attempt has been made to design the satellite constellation in LEO using the software, System Tool Kit (STK) whichhas 2D and 3D environment modeling. In the designed constellation, the satellites passover Pakistan and access the target area. To get uninterrupted continuous coverage, the number of satellites per plane and the number of orbits is increased. The orbital inclinations were also adjusted to achieve the objective. One of the important tasks for continuous coverage is the concept of satellite handshaking which means that soon a satellite gets away from the line of sight of the ground station antenna; another satellite comes within the line of sight of that antenna. LEO satellites are more favorable for communication purposes as they provide reliable communication as well as higher bandwidth.

Keywords: Satellite; Latency Rate; Constellation; Coverage; Inclination; Antenna (search for similar items in EconPapers)
Date: 2023
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