GPS道路修测系统在中国公路网测绘工程中的应用

Application of the Road Survey System by GPS in Surveying Project for Traffic Nets in China

本文介绍了车载式GPS道路修测系统的基本原理和体系结构，详细讲述了该系统在“中国公路网GPS测绘工程”的应用。“中国公路网GPS测绘工程”是由多家部门共同参与的大型道路测绘项目，目的是解决现有公路网数据库现势性差的问题。文中结合“中国公路网GPS测绘工程”重点阐述了修测系统中几个关键技术的实现方法，最后给出了修测系统在该工程中的使用效果。

This paper introduces the principle and design of the road survey system by GPS, and the application of the vehicle GPS surveying system for traffic nets in China. This surveying project is carried by many surveying teems. We discuss reality of some key technologies of the project in details. In the end, the effects of the system in the project are presented.