基于北斗广播星历的星载几何法定轨及质量控制  

LEO Satellite Kinematic Orbit Determination and Quality Control Using BeiDou Broadcast Ephemeris

作　　者：张盛秋 秦显平 Zhang Shengqiu;Qin Xianping(School of Geology Engineering and Surveying,Chang'an University, Xi'an 710054,China;State Key Laboratory of Geo-Information Engineering,Xi'an 710054,China;Xi'an Research Institute of Surveying and Mapping,Xi'an 710054,China)

机构地区：[1]长安大学地质工程与测绘学院,陕西西安710054 [2]地理信息工程国家重点实验室,陕西西安710054 [3]西安测绘研究所,陕西西安710054

出　　处：《测绘科学与工程》2018年第5期17-20,共4页Geomatics Science and Engineering

摘　　要：本文在基于北斗广播星历的低轨卫星几何法定轨算法中,提出采用PDOP值作为质量控制手段,剔除定位结果中的较大偏差值,利用2013年10月11日风云三号C星的星载北斗数据进行试验计算。计算结果表明,采用广播星历和星载北斗单频伪距,风云三号C星可以获得优于10m的定轨结果;此外,采用PDOP值对几何法定轨进行质量控制,可以有效剔除定位结果中的较大偏差值。In LEO (low earth orbit) satellite kinematic orbit determination algorithm based on BeiDou Broadcast Ephemeris ,PDOP value is studied to be used as quality control to reject the great deviation value. The satellite-borne BeiDou data of Fengyun - 3C satellite on October 11 , 2013 is used for the experiment. The results show that firstly the accuracy of the kinematic orbit determination of Fengyun-3C satellite is better than 10m when using BeiDou single-frequency Pseudo-ranges and broadcast ephemeris, secondly the great deviation value can be rejected effectively when using PDOP value to control the quality of point positioning.

关 键 词：广播星历 北斗 几何法定轨 质量控制 低轨卫星 

分 类 号：P228[天文地球—大地测量学与测量工程]