大地网三类设计的应变分析法

THE STRAIN ANALYSIS METHOD FOR THE THIRD-ORDER DESIGN OF GEODETIC NETWORKS

本文针对大地网三类设计的质量标准问题,提出了一种新方法:应变分析法。它可以根据区域性的尺度、旋转、变形三个应变参数的变化,来发现网的局部区域性系统差或粗差;并能较明晰地反映出新增观测值对原网的局部改进或细节改进。

After a review of the significance of the third-order design of geodetic network, the criteria of geodetic network improvement is discussed. In consideration of regional improvement of the network, strain analysis method is proposed. It also has the advantage of clarity in geometric meaning and simplification in calculation.