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当今,移动通信发展很快,利用通信卫星进行车辆、船舶、飞机等移动体的通信已经开始实验,并取得了实验数据。日本通过技术试验卫星5号和6号确立这方面基础技术;国际海事卫星组织利用海事卫星Ⅱ试验飞机卫星通信;美国和加拿大的移动体通信卫星即将发射。本文介绍移动体卫星通信系统的现状和发展动向。
Nowadays, the development of mobile communication is very fast. The communication of moving objects such as vehicles, ships and aircrafts using communication satellites has started experimenting and the experimental data have been obtained. Japan established its basic technologies in this area through technology test satellites 5 and 6; Inmarsat used maritime satellite II to test aircraft satellite communications; and mobile communications satellites in the United States and Canada are about to launch. This article introduces the status quo and development trend of mobile satellite communication system.