载波相位平滑伪距在城市定位中的应用  

Application of carrier phase smoothing pseudorange in city location

作　　者：韩澎涛 李雪杉 刘美君 丁新展 HAN Pengtao;LI Xueshan;LIU Meijun;DING Xinzhan(School of Civil Engineering and Architecture,Taishan University of Science and Technology,Tai’an,Shandong 271000,China;Heilongjiang Fifth Engineering Institute of Surveying,Mapping and Geographic Information,Harbin 150081,China;Shenyang Institute of Surveying and Mapping Co.,Ltd.,Shenyang 110000,China)

机构地区：[1]泰山科技学院建筑工程学院,山东泰安271000 [2]黑龙江第五测绘地理信息工程院,哈尔滨150081 [3]沈阳市勘察测绘研究院有限公司,沈阳110000

出　　处：《导航定位学报》2021年第6期130-134,共5页Journal of Navigation and Positioning

摘　　要：为提高城市环境下伪距单点定位精度,利用实测静动态全球定位系统(GPS)单频观测值进行载波相位平滑伪距。静态定位实验中,平滑后E、N和U方向内符合定位精度较标准伪距定位提高了7.8%、5.3%和11.6%;动态定位实验中,平滑后N和U方向内符合定位精度分别提高了1.5%和1.1%,E方向基本保持一致。实验结果表明,载波相位平滑伪距可提高城市环境下单点定位精度,使定位结果可靠性有所提高,动态定位轨迹平滑更贴近实际。In order to improve the pseudorange single point positioning accuracy in urban environment,the carrier phase smoothing pseudorange was carried out by using the measured static and dynamic Global Positioning System(GPS)single frequency observations.In the static positioning experiment,the accuracy of coincidence positioning in E,N and U directions after smoothing was 7.8%,5.3%and 11.6%higher than that of standard pseudo distance positioning.In the dynamic positioning experiment,the accuracy of coincidence positioning in N and U directions was increased by 1.5%and 1.1%respectively after smoothing,and the positioning accuracy in E direction was basically the same.The experimental results showed that the carrier phase smoothing pseudo distance could improve the accuracy of single point positioning in urban environment,improve the reliability of positioning results,and the dynamic positioning trajectory smoothing was more practical.

关 键 词：载波相位平滑伪距 单频 城市环境 低成本定位 定位轨迹 

分 类 号：P228[天文地球—大地测量学与测量工程]