WGS-84至工程坐标系的转换参数获取

Researches on obtaiming methods of coordinate transform parameters from WGS-84 to engineering system

随着直接由GPS相对定位获取高精度的工程坐标成为可能 ,由GPS测定WGS 84坐标系的坐标 (或坐标增量 )至用户定义的工程坐标系坐标 (或坐标增量 )所需的转换参数的获取方法以及精度日益为人们所重视 .提出了研究这一问题的必要性 .在给出不同条件下坐标转换参数的获取技术的基础上 ,对转换参数的精度的影响因素进行了分析 。

More attentions are paid to the precision problems to obtain coordinate transform atior atior parameters from WGS 84 System to Engineering System.Necessities to research are put forward. Based on analyzing on the influencing factors on precision of transform atior parameters, some useful methods and points of view are put forward.