简单阐述了全球导航卫星系统GNSS建设的最新进展,包括GPS现代化、GLONASS恢复、GALILED系统和COMPASS/BD-2系统的建设。各国卫星导航定位系统的激烈竞争必将使GNSS发展面临新的机遇和挑战,本文基于目前GNSS导航卫星系统的建设内容,针对当前卫星导航定位技术领域所面临的完备性监测、多模卫星组合和中国COMPASS系统等涉及的数据处理问题进行了分析。
The new developments in GPS modernization, GLONASS, GALILEO and COMPASS/BD2 are briefly summarized. With high competitions among many countries, the Global Navigation Satellite System will step forward to a new era, i.e. multi-GNSS and hundred navigation satellites will exist simultaneously in the sky, which brings new challenges and opportunities in GNSS. In this paper, integrity monitoring, multi-GNSS data processing, muhi-GNSS orbit determination and so on are analyzed.