Based on the practice of high-grade highway tunnel GPS survey, establishment and data processing method for independent coordinate system of tunnel GPS control network are introduced in the paper.
本文根据生产实践，介绍了高等级公路隧道GPS控制网的建立及用于施工坐标系的数据处理方法。
This paper is directed to an advanced method for route survey-polar coordinate method of traverse, and try to establish a corresponding graph and data processing system.
针对导线极坐标法测设路线曲线的方法，提出一套完整的内业图形与数据处理系统的建立方法和步骤。
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