| 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。 |
| 关键词: 卫星导航 广域增强系统；完好性；兼容与互操作 |
| DOI： |
|
| 基金项目: |
|
| Architecture and Character of Satellite Navigation Wide Area Augmentation System（WAAS） |
| JIANG Yu-zhi |
| (Southwest Institute of Electronic Technology, Chengdu 610036,China) |
| Abstract: |
| The origination and development status
of GPS WAAS（Wide Area Augmentation Syst
em） are introduced, and the significance of the system character,
architecture and key technologies are analysed, including GPS constellation arg
ument, surveillance and management of service area griding and network integrit
y architecture, 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 argume
ntation system and GPS
WAAS all over the world should be speeded up and compa
tible interface and service standard should be established to implement global n
etworking and seamless gl
obal coverage and to provide maximum efficiency. |
| Key words: satellite navigation wide area augmentation syst
em(WASS) integrity compatibility and interoperability |
《电讯技术》编辑部 