基于RTK的低成本GPS+BDS接收机设计与性能分析  

Design and Performance Analysis of Low Cost GPS+BDS Receiver Based on RTK

作　　者：张艳红 张鹏[1,2] 吴辉[1] 徐亚明 ZHANG Yanhong;ZHANG Peng;WU Hui;XU Yaming(School of Geodesy and Geomaties,Wuhan University,Wuhan 430079,China;Key Laboratory of Precise Engineering and Industry Surveying,National Administration of Surveying,Mapping and Geoinformation,Wuhan 430079,China)

机构地区：[1]武汉大学测绘学院,湖北武汉430079 [2]精密工程与工业测量国家测绘地理信息局重点实验室,湖北武汉430079

出　　处：《测绘通报》2018年第11期1-6,共6页Bulletin of Surveying and Mapping

基　　金：国家自然科学基金(41474004)

摘　　要：随着BDS系统的日益完善和GPS系统的现代化,基于RTK技术的GPS+BDS双系统定位在工程应用中有着越来越重要的地位。目前,已有厂商将RTK定位引擎集成到GPS+BDS接收机模块中。本文主要研究利用低成本的GPS+BDS模块实现RTK定位的方法,既可以通过传统RTK的方式,也支持网络RTK的方式。本研究基于低成本的GPS+BDS接收机模块设计了接收机,并对比了基于自主设计基准站模式的RTK定位和基于千寻位置网的网络RTK定位在静态条件下的定位效果。在此基础上,模拟了实际工程应用中的动态情况,试验结果表明,在短基线条件下,即使是低成本的GPS+BDS接收机,借助于RTK定位方式仍然可以达到厘米级的实时定位精度,能够在实际的工程中得到应用。With the improvement of BDS system and the modernization of GPS system,GPS＋BDS dual system positioning based on RTK technology has become more and more important in engineering applications. Currently,some vendors have integrated the RTK positioning engine in the GPS＋BDS receiver module. This article mainly studies the method of realizing the RTK positioning technology with low cost GPS＋BDS module,either through the traditional RTK method or the network RTK method. This study designed a receiver based on low cost GPS＋BDS receiver module and compared the positioning effect of RTK positioning based on self-designed reference station and network RTK positioning based on Qianxun location network under static scene. In addition,the dynamic scenario in practical engineering applications are simulated. The test results show that even with low cost GPS＋BDS receivers,real-time positioning accuracy of centimeters can still be achieved with the RTK positioning method under short-baseline conditions. This technology can be applied in the practical project.

关 键 词：GPS+BDS RTK RTCM 网络RTK 

分 类 号：P228[天文地球—大地测量学与测量工程]