The European Commission has said Galileo will primarily be used for transportation technology, scientific research, land management and disaster monitoring.
Galileo will provide two signals; a standard civilian one and an encrypted, wide-band signal 11 called the Public Regulated Service . This second signal is designed to withstand localized jamming and will be used by police and military services in Europe. European Commission __12_officials_ have said China will not be given access to the PRS.
The first Galileo satellite is scheduled to launch late in 2004, Clocks on board the 13_satellite_ Will be synchronized through 20 ground sensors stations, two command centers and 15 uplink stations.
Receivers on the ground will use time signals from the satellites to precisely calculate their 14 location . A search and rescue function will also 15 let distress signals be relayed through the constellation of satellites.
中国帮助欧洲发展全球定位系统的竞争
中国要捐助欧洲国家正在开发的全新的全球卫星定位系统。伽利略人造卫星系统将提供了一个较美国军事机构使用的全球定位系统更为精确的民用系统。中国将提供两亿三千万欧元(两亿伍千九百万美元)的资金,并且协助技术、制造以及市场拓展的开发。欧洲交通委员罗瑶拉德帕若索说:中国将帮助伽利略(人造卫星)成为成长中的定位服务市场的主要世界基础设施。
【2014年职称英语考试(理工类)完形填空题二级重点文章(4)】相关文章:
★ 2014年职称英语考试理工类完形填空模拟试题及答案(11)
★ 2014年职称英语考试理工类完形填空强化练习题及答案(2)
★ 2014年职称英语考试(理工类)完形填空练习题及答案解析(2)
最新
2016-03-01
2016-03-01
2016-03-01
2016-03-01
2016-03-01
2016-03-01