论文部分内容阅读
在人类历史经历跨世纪转折之际,卫星通信历史也将发生一次转折。随着21世纪的到来,卫星通信将进入个人通信时代,这个时代的最大特点就是卫星通信终端达到手持化,个人通信实现全球化,这一业务上的飞跃可与计算机工业中由大型机进入个人计算机,电子工业中由真空管进入固态器件相提并论。所谓个人通信,是移动通信的深一步发展,是面向个人的通信,在国际电联被称为通用个人通
As human history has experienced a turning point in the past century, there will also be a turning point in the history of satellite communications. With the advent of the 21st century, satellite communications will enter the era of personal communications. The most prominent feature of this era is that the satellite communications terminals are hand-held and the personal communications are globalized. This business leap can be related to entering the personal computer from the mainframe into the personal computer Computer, electronics industry by the vacuum tube into the solid state device par. The so-called personal communication, is a further development of mobile communications, is a personal communication, known in the Union as a universal personal pass