基于GPRS的实时差分系统及其在土地变更调查中的应用研究

Real time differential system based on GPRS and its application in land change surrey

以徐州市“数字国土”土地变更调查项目为例,介绍了利用高精度定位的GPS和便于携带、功能强大的PDA,将二者集成用于土地变更调查。文中探讨了基于GPRS公网的实时差分系统的建设及其在土地变更调查中的应用。

In the ＂Digital Land＂ project of Xuzhou city, it introduces the high precision data of GPS technology and the excellent capability of PDA, of which the integration of this two technologies are used in the change survey of land use. The technique and means of land change survey based on GPRS real time differential system are discussed, and the structure of the system is also designed.