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引言美国全球定位系统(GPS)的卫星群在区域和全球地学研究中起了主要作用。由于面临着GPS技术应用的日益增长和多样化,世界科学界一直致力于创立GPS数据获取和分析的国际标准以及部署和运行一个普遍的、综合性的全球卫星追踪系统。
Introduction The United States Global Positioning System (GPS) satellite constellation played a major role in regional and global geosciences research. Faced with the ever-increasing and diversified use of GPS technology, the world’s scientific community has been committed to creating international standards for GPS data acquisition and analysis and deploying and operating a universal, comprehensive global satellite tracking system.