Cartographic visualizations have been known for thousands of years and have brought forth a wealth of different map proj......

分析了天测与测地甚长基线干涉测量(very long baseline interferometry,VLBI)观测频率设置的必要性,重点分析了Ka波段观测的利弊......

GPS技术可以在全球范围内实现精准定位和导航,提供全天候、全方位的监控服务,将其应用到大地测量中,能够显著提升测量工作的效率,......