GPS在测定地球自转参数等方面的应用

The Applications of GPS to Geodesy and Geodynamics

本文介绍了近年来全球定位系统(GPS)在地球动力学和地求自转服务等领域中的广泛应用,并给出了两次GPS联测GIG'91和IGS'92在高精度高分辨率的地球自转参数、高精度的全球尺度基线长度和地心坐标的测定中取得的令人瞩目的成果。本文还简要地叙述了GPS高精度测量中存在的一些主要问题。

The current applications of GPS (Global Positioning System) to ge'odesy and geo-dynamics, espacially to earth rotation service, establishment of terrestrial reference-frame and so on, are introduced. The satisfactory results of earth rotation parameter monitoring with high accuracy and resolution, and the precise determination of global scale baseline lengths and geocentric position obtained from GIG' 91 and IGS' 92 global campaign are given. Some main problems associated with precise GPS surveying are briefly discussed.