北斗多模组合RTK实时定位性能比较与分析  

Performance comparison and analysis of Beidou multi-constellation RTK real-time positioning

作　　者：何宗友[1] 石晓春[1] 彭冬林 李成钢[2,3] 

机构地区：[1]广东省国土资源测绘院,广州510500 [2]中山大学地理科学与规划学院,广州510275 [3]广州中海达卫星导航技术股份有限公司,广州511400

出　　处：《测绘科学》2017年第7期108-114,共7页Science of Surveying and Mapping

基　　金：广东省科技计划项目(2013B010201004;2013B091500048)

摘　　要：针对省级北斗地基增强系统在推进建设中系统评估方法存在的欠缺,提出了北斗多模组合定位测试方法。通过重点分析6种组合定位模式下的RTK实时定位关键性能表现,对定位初始化时间、固定成功率、连续性定位精度和实时定位精度等关键指标进行了定量对比分析。结果表明,广东省北斗地基增强系统可为广东省范围内提供符合精度要求的实时定位服务,在基准站平均间距35km以内,采用GPS+BDS组合信号RTK实时定位效果较好,能够提升其初始化时间和固定成功率。A method for testing the Beidou multi-mode combined positioning is presented aiming at the prob- lem of the system evaluation method when provincial Beidou ground based augmentation system is being built. It emphatically analyzes the key performance of RTK positioning under six kinds of Beidou multimode positioning modes. Key indicators -- such as the initialization time and fixed success rate of real-time positioning, continuous positioning accuracy and real-time positioning accuracy -- are quantitatively analyzed. It is showed in the results that GDBDCORS can provide Guangdong Province with real-time positioning service. The average distance of the reference station is less than 35 km, the real-time positioning effect of the GPS＋BDS combined signal RTK is better, and it can improve the initialization time and the fixed success rate.

关 键 词：广东省北斗地基增强系统 基准站 北斗多模组合 RTK实时定位 性能 

分 类 号：P228[天文地球—大地测量学与测量工程]