GPSRTK测量技术能够实时地提供测站点的3维定位结果,速度快、精度高,但应用范围受自然条件限制；GPSPPK技术可以克服GPSRTK技术某些方面的不足,其利用快速求解整周模糊度的技术,可仅需若干历元便可以得到厘米级的3维坐标,其无需数据通讯,而且作业半径可达15 km以上,针对PPK的优点,通过理论分析与实践,探索PPK在像控测量中的应用方法,达到提高作业效率,节省人力物力的目的.%Featured by rapid speed and high precision, GPS RTK measurement technique can provide real -time 3D positioning results for survey station, but its application is limited by natural conditions. GPS PPK technique can overcome some shortages of GPS RTK. It can obtain centimeter level 3 - dimensional coordinates using few observation epoch through fast integer ambiguity solution techniques and its operation radius can reach 15 kilometers with no need of data communication. In light of the advantages of PPK, this paper studies the application of PPK in image control surveying in an effort to improve operating efficiency and save manpower and material resources through theoretical analysis and practice.
展开▼
