卫星移动通信,是未来个人通信系统的重要组成部分,它与地面个人通信系统相互补充、相互配合,将最终实现个人通信和全球通信的目标。目前,卫星移动通信系统发展迅速,很多国家、地区和国际通信组织正在研制、开发并推出多种卫星移动通信系统。1 卫星移动通信系统的特点 卫星移动通信系统的主要特点是不受地理环境、气候条件和时间的限制,在卫星覆盖区内不存在通信盲区,通信的灵活性、机动性 Satellite mobile communication is an important part of the personal communication system in the future. It complements and cooperates with the ground personal communication system and will finally achieve the goal of personal communication and global communication. At present, the satellite mobile communication system is developing rapidly. Many national, regional and international communication organizations are developing, developing and launching a variety of satellite mobile communication systems. The characteristics of a satellite mobile communication system The main features of the satellite mobile communication system are not limited by the geographical environment, climatic conditions and time, there is no communication blind area in the satellite coverage area, communication flexibility, mobility