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。
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。
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