论文部分内容阅读
在现代通信领域中,随着微电子技术的进步,海事卫星通信发展迅速。它突破了短波通信多区域、多气候、多环节和速度慢的局限性,开拓了海洋通信全球性、全天候、全自动和速度快的新时代。美国海事卫星机构(MARISAT)于1976年开创了海事卫星通信方法。1979年7月16日宣告成立国际海事卫星组织(INMARSAT),中国是签约国,至今已有美、苏、英、法、
In the field of modern communications, maritime satellite communications have developed rapidly with the advancement of microelectronics. It broke through the shortcomings of multi-region, multi-climate, multi-links and slow speed of shortwave communications, and opened up a new era of global, all-weather, full-automatic and fast-speed marine communications. The Maritime Satellite Service of the United States (MARISAT) opened the maritime satellite communications method in 1976. July 16, 1979 announced the establishment of the International Maritime Satellite Organization (INMARSAT), China is a signatory, has been the United States, the Soviet Union, Britain, France,