不同独立坐标系的比较以及最佳选取问题

Comparison and Optimal Selection of Different Independent Coordinate Systems

针对当前常用的抵偿坐标系和任意带坐标系的局限性,提出一种综合性的坐标系,即抵偿任意带坐标系建立方法。该方法将常用的两类坐标系结合在一起,更好地抑制长度变形且扩大测区适用范围。利用算例对这几种独立坐标系进行比较与分析,结果表明,抵偿任意带坐标系基本满足了当前城市测量的需求,并就独立坐标系的最佳选取提出合理化的建议。

Aimed at the existing limitations of compensation coordinate system and random band coordinate system which are commonly used in the field of city survey or engineering measurement, this paper presents a comprehensive coordi- nate system method, that is, random band coordinate sys- tem, which is established by the combination of these two kinds of coordinate systems, to suppress length deformation area and expand the test scope. Some reasonable proposals are put forward by comparing and analyzing several kinds of coordinate systems from examples.