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首先,作为卫星通信在广播电视转播方面的应用例,介绍了美国、欧洲各国、澳大利亚以及巴西的实际状况;其次介绍了商业视频通信方面美国的现状与今后的课题;第三,关于VSAT通信,着重介绍了美国的现状与经济性;第四,介绍了高速商业业务的构成、特点以及各个国家的业务构成实例;最后,就移动卫星通信,介绍了加拿大、美国的研究经纬、业务实例及未来计划、澳大利亚和欧洲的未来计划.
First of all, as the application of satellite communication in the broadcast of radio and television, this paper introduces the actual situation of the United States, European countries, Australia and Brazil. Secondly, it introduces the current status and future issues of the commercial video communications in the United States. Thirdly, The fourth part introduces the composition and characteristics of high-speed commercial business and the business composition of each country. Finally, the author introduces the research latitude and longitude of Canada and the United States and the future of mobile satellite communications Plans for the future of Australia and Europe.