一种GNSS动态检定方法及设计实现  

A dynamic verification method for GNSS and its design as well as implementation

作　　者：代桃高 丁宇凯 王子龙 贾赞杰 于合理 叶子玉 DAITaogao;DINGYukai;WANGZilong;JIAZanjie;YU Heli;YEZiyu(State Key Laboratory in Complex Electromagnetic Environmental Effects of Electronic Information Systems,Luoyang,Henan 471000,China;No.Fifty-four Institute of China Electronics Technology Group Corporation,Shijiazhuang 050081,China)

机构地区：[1]电子信息系统复杂电磁环境效应国家重点实验室,河南洛阳471000 [2]中国电子科技集团公司第五十四研究所,石家庄050081

出　　处：《测绘科学》2022年第12期66-73,共8页Science of Surveying and Mapping

摘　　要：针对全球卫星导航系统(GNSS)动态检定基准溯源和技术实现问题,该文提出一种基于转台的机械式动态检定技术。该平台给出的基准值由高精度绝对式角度编码器计算得到,其避免了与GNSS接收机定位解算的技术同源性和观测值的相关性,且可对一体式和分体式的接收机及天线进行检定,还可以用于长时段的动态搭载试验、对星信号捕获动态性能测试。该文对转台的自身基准给出了检定方法,并进行了验证。结果表明,该转台的综合位置偏差精度优于3 mm,可适用于绝大多数GNSS定位方式及精度的检定。Aiming at the problem of global navigation satellite system(GNSS)dynamic verification reference source and technology realization,a mechanical dynamic verification technology based on turntable was proposed in this paper.The reference values given by the platform were calculated by the high precision absolute angular encoder,which avoided the technical homology with GNSS receiver and the correlation of the observed values.It could be used to verify the integrated and separated receivers as well as antennas,and also could be used to test the dynamic performance of long-term dynamic loading test and satellite signal acquisition.In this paper,the calibration method of self-reference of turntable was given and verified.The test results showed that the integrated position error accuracy of the turntable was better than 3 mm,and it could be used to verify the positioning accuracy of most GNSS positioning methods.

关 键 词：转台 GNSS动态检定 角度编码器 震颤幅度 时间同步精度 综合位置偏差 

分 类 号：P228[天文地球—大地测量学与测量工程]