坐标参数加权平差法在线路补测中的应用

Application of Parameter Adjustment with Weighted Coordinates in Additional Control Survey of Route

在线路施工的补充测量控制中 ,对先期控制点老坐标的如何使用 ,关系到新坐标的网形精度和与老坐标的差异程度。介绍了对先期控制点坐标进行赋权参加平差的方法 ,并给出评定结果的指标。用实例分析验证了这种方法的有效性。

In additional control survey of route construction, how to use the coordinates of old control points affects both the precision of new coordinate and the difference between old coordinate and the new. This paper presents one method which weights the old coordinates in parameter adjustment. The standard of solution is offered. Examples are given to prove the effectiveness of this method.