目前全球信息化趋势日趋明显，航天活动对人类文明的发展起着不可估量的作用。据专家评估，与本世纪７０年代相比，到下世纪初时，工业发达国家的信息量将增加１００倍，同时，也因为广泛使用了卫星通信与广播系统，才能保证如此之多的各种信息的传输。研究表明，在未来数年内 At present, the trend of global information becomes more and more obvious. Space activities play an invaluable role in the development of human civilization. According to expert assessment, as compared with the 1970s, industrialized countries will have 100 times more information by the beginning of the next century. At the same time, because of the extensive use of satellite communications and broadcasting systems, so many kinds of information can be guaranteed The transmission. Research shows that in the coming years