摘要
介绍了卫星导航广域增强系统(WAAS)产生的原因和发展现状,分析了美国广域增强系统采用的全新概念、系统结构以及主要关键技术等特点,包括星座增强、服务区栅格化监管、完好性监测与处理结构、完好性通道、兼容与互操作设计等。在此基础上,指出为了提高GPS民用应用,应该加快我国卫星导航增强系统与国际同类GPS广域增强系统开展国际合作,建立起统一、兼容的系统接口与服务标准,实现全球联网与全球覆盖,真正使这套系统的效能最大化。
The origination and development status of GPS WAAS（Wide Area Augmentation System） are intro- duced, and the significance of the system character, architecture and key technologies are analysed, including GPS constellation argmnent, surveillance and management of service area gilding and network integrity architec- ture, integrity channel, compatibility and interoperability design etc. It is pointed out that in order to increase services provided to GPS civilian users, the international cooperation between China＇ s satellite navigation argu- mentation system and GPS WAAS all over the world should be speeded up and compatible interface and service standard should be established to implement global networking and seamless global coverage and to provide maximum efficiency.
出处
《电讯技术》
北大核心
2010年第7期26-30,共5页
Telecommunication Engineering
关键词
卫星导航
广域增强系统
完好性
兼容与互操作
satellite navigation
wide area augnentation system（WASS ）
integrity
compatibility and interoperability
