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为了研究南极现代地壳运动，中国在西南极菲尔德斯海峡地区布设了形变监测网，并用ＤＩ－２０测距仪和ＧＰＳ定位仪对该网进行了监测。同时，中国也参加了ＳＣＡＲ组织的全南极ＧＰＳ联测。本文讨论了将形变参数纳入误差方程的水平形变数据处理方法，并对刚体平移、旋转、均匀应变几种典型形变模型在测边网平差中的运用进行了讨论。通过对经典自由网与秩亏自由网的基准分析，提出对形变参数以及其它附加参数和点位参数分别给定参考基准的方法。相应于上述方法，编制了一系列数据处理程序并将之应用于对西南极菲尔德斯海峡形变监测网的数据分析。本文还利用监测网应变分析原理，对ＧＰＳ监测数据进行了讨论和分析，结果表明，菲尔德斯断裂地区存在微小的断裂剪切运动，但位移量不大。
In order to study the modern Antarctic crustal movement, China deployed a deformation monitoring network in the Fields of the Strait of the West Antarctica and monitored the network using a DI-20 range finder and a GPS locator. At the same time, China also participated in SCAR’s all-Antarctic GPS joint test. In this paper, the horizontal deformation data processing method of incorporating deformation parameters into the error equation is discussed. The application of several typical deformation models including rigid body translation, rotation and uniform strain in the adjustment of the edge network is discussed. Based on the benchmark analysis of classic free network and rank deficit free network, a method of giving reference to deformation parameters and other additional parameters and point parameters respectively is proposed. Corresponding to the above method, a series of data processing programs have been developed and applied to the data analysis of the deformation monitoring network in the Fields in the West Antarctica. In this paper, we also use the principle of strain gauge analysis in the monitoring network to discuss and analyze the GPS monitoring data. The results show that there is a slight fault-shearing movement in the Fildes fracture area, but the displacement is not large.