000			01077nam a2200145Ia 4500
008			231221s9999 xx 000 0 und d
041			_aEnglish
082			_aCPEC16-1208
100			_aSambasiva Rao, V.
245		0	_aExtend Leo Downlinks With Geo Satellites
260			_c2016
500			_aExtend Leo Downlinks With Geo Satellites . V. Sambasiva Rao Department of Electronics & Communication Engineering PES University, Bengaluru-560085 Microwaves & RF, pp 52-56, December 2016
510			_aL ow-Earth-orbit (LEO) satellites fly at different heights above Earth and can vary in the amount of time they are visible to a ground station (GS) to transferring data to and from the GS. For a typical LEO satellite in orbit 600 km above Earth, visibility to a GS may be less than 20 minutes per orbit, limiting the amount of data that can be exchanged. By recruiting a geosynchronous-Earth-orbit (GEO) satellite as part of the overall data link, however, it can be possible to increase the available LEO satellite datatransmission time (and amount of data).
942			_cIR
999			_c233760 _d233760