This paper introduces the present and future of Global mobile Satellite communication system. IRIDIUM system is also introduced.

本文介绍全球移动卫星通信系统的现状、种类及其将来的发展趋势。对“铱”星系统也作了介绍。

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Its Iridium satellite-based global phone system switches all calls in the sky without using any ground stations, an impossibly difficult task.

FORBES: Magazine Article

Last fall he was ready to unveil it as a 288-satellite system very much like Iridium.

FORBES: "We're On A Collision Course"

McCaw also has intellectual property rights to a system that connects low-orbit satellite systems like Iridium with midaltitude projects like ICO.

FORBES: McCaw poised to scoop up Iridium