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Many parameters have to be taken into account in designing an LEO satellite constellation including transmission delay, service coverage, minimum elevation angle, and the effects of space radiation. We selected the 2π constellation for the NeLS ISL study to maintain continuous ISL connections, which is expressed by using a Walker notation of 120/10/1 with 55° of inclination. The satellite orbit parameters...
In Japan, Next-generation LEO System (NeLS) research center was established with a support of the Ministry of Posts and Telecommunications (MPT) in the end of 1997. This research center focuses on a study for the LEO system called NeLS which would provide global multimedia mobile satellite services. The target services include up to 2 Mbps multimedia data transmission using handheld or portable...
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