GPS在高等级公路勘测应用中的几个问题

Some Issues of Applying GPS Technology in Highway Survey

根据高等级公路勘测的特点与要求 ,论述应用GPS卫星定位技术进行公路初测控制测量的方法 ,包括测量精度等级的确定 ,GPS信号接收机野外作业测量模式的选择 ,以及GPS数据处理等。探讨GPS RTK技术在路线定测中的应用 ,不仅可以提高路线勘测速度 ,而且其定测数据可直接传输于计算机进行CAD设计 ,文中的有关建议 ,可以提高公路勘测工作的效率和自动化水平。

According to their characteristics and requirements of the highway survey,this paper discusses the methods of applying GPS technology in highway preliminary survey,inculding the determination of survey precision grade,the selection of GPS signals receiver and the models of the field work,the GPS data processing,etc.And the application of the GPS-RTK technology in the final survey is discussed.Not only can it increase the speed of the survey,but also the data of the final survey can be directly used to the CAD.The Constructive Opinions in this paper can improve the standards of the efficiency and automation in the highway survey.