北斗系统星源伪距偏差特性分析及改正

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英文篇名：Characteristic analysis and correction of BeiDou satellite-induced code bias 作者：朱少林 ; 岳东杰 ; 陈健 ; 汤同旭 ; 章媛 英文作者：ZHU Shaolin;YUE Dongjie;CHEN Jian;TANG Tongxu;ZHANG Yuan;School of Earth Science and Engineering,Hohai University; 关键词：北斗系统 ; 星源伪距偏差 ; 奇异谱分析 ; MP组合 ; MW组合 ; 双频SPP 英文关键词：BeiDou system;;code pseudorange bias;;singular spectrum ananlysis;;MP combination;;MW combination;;dual-frequency single point positioning 中文刊名：测绘通报 英文刊名：Bulletin of Surveying and Mapping 机构：河海大学地球科学与工程学院; 出版日期：2019-03-25 出版单位：测绘通报 年：2019 期：03 基金：江苏省产学研联合创新资金前瞻性研究项目(BY2015-002-04) 语种：中文; 页：15-19+30 页数：6 CN：11-2246/P ISSN：0494-0911 分类号：P228

摘要

北斗卫星伪距观测值存在一类与卫星相关的系统误差,称为星源伪距偏差,MEO和IGSO卫星可以通过其与高度角的关系建立改正模型,而GEO卫星由于其静止特性难以建立基于高度角的改正模型。据此,本文在分析GEO卫星伪距偏差特性的基础上,提出了一种基于奇异谱分析(SSA)的修正方法,并通过双频无电离层组合伪距单点定位(SPP)对比试验来验证修正效果。结果表明:修正后GEO卫星伪距观测值基本上消除了伪距偏差,MP观测值精度在B1、B2、B3频率上分别提高了39.9%、17.9%、29.4%,MW观测值精度提高了41.3%;传统改正模型修正IGSO和MEO卫星伪距偏差对SPP影响很小,而奇异谱分析方法修正GEO卫星伪距偏差使SPP的精度在平面、高程方向上分别提高了11.1%、21.1%。
        There are systematic errors on BeiDou code pseudorange measurements because of the influence of satellite-induced errors which are called satellite-induced biases. The IGSO and MEO satellites can establish the correction model by the relationship between code bias and elevation,but the GEO satellite is difficult to establish the correction model because of the small change of elevation. In this contribution,with the analysis of characteristics of GEO satellite-inducedcode bias,a method of correcting is proposed based on singular spectrum ananlysis( SSA),and the correction effect is verified by the experiment of single point positioning( SPP) of ionosphere-free combination. The results show that after correction,the accuracy of GEO MP observation improves 39.9%,17.9% and29.4% respectively in N,E and U,and the MW observation improves 41.3%. Correcting IGSO and MEO code bias with the traditional correction model has little influence on SPP,while correcting GEO and IGSO pseudo range errors with the singular spectrum analysis method improves the accuracy of SPP by 11.1% and 21.1% respectively in the plane and elevation direction.

引文

[1]蔡韧鸣,孙付平.一种北斗星源伪距波动改正方法[J].测绘科学技术学报,2016,33(6):577-581.
    [2]MONTENBRUCK O,HAUSCHILD A,STEIGENBERGERP,et al.Three’s the challenge:a close look at GPSSVN62 triple-frequency signal combinations find carrierphase variations on the new L5[J].GPS World,2010,21(8):8-19.
    [3]MONTENBRUCK O,HAUSCHILD A,STEIGENBERGERP,et al.A compass for Asia:first experience with the Bei Dou-2 regional navigation system[C]∥Poster at IGS Workshop.Olsztyn,Poland:IGS,2012.
    [4]HAUSCHILD A,MONTENBRUCK O,THOELERT S,et al.A multi-technique approach for characterizing the SVN49 signal anomaly,part 1:receiver tracking and IQconstellation[J].GPS Solutions,2012,16(1):19-28.
    [5]HAUSCHILD A,MONTENBRUCK O,SLEEWAEGENJ M,et al.Characterization of compass M-1 signals[J].GPS Solutions,2012,16(1):117-126.
    [6]WANNINGER L,BEER S.Bei Dou satellite-induced code pseudorange variations:diagnosis and therapy[J].GPSSolutions,2015,19(4):639-648.
    [7]GUO F,LI X,LIU W.Mitigating Bei Dou satellite-induced code bias:taking into account the stochastic model of corrections[J].Sensors,2016,16(6):909.
    [8]李昕,张小红,曾琪,等.北斗卫星伪距偏差模型估计及其对精密定位的影响[J].武汉大学学报(信息科学版),2017,42(10):1461-1467.
    [9]江志红,丁裕国.奇异谱分析的广义性及其应用特色[J].气象学报,1998,56(6):736-745.
    [10]罗勇,匡翠林,卢辰龙,等.基于SSA的GPS坐标序列去噪及季节信号提取[J].大地测量与地球动力学,2015,35(3):391-395.
    [11]卢辰龙.奇异谱分析在大地测量时间序列分析中的应用研究[D].长沙:中南大学,2014.
    [12]赵佳佳,陈志遥,张燕,等.奇异谱分析在倾斜应变数据处理中的应用研究[J].大地测量与地球动力学,2017,37(5):541-545.
    [13]VAUTARD R,GHIL M.Singular spectrum analysis in nonlinear dynamics,with applications to paleoclimatic time series[J].Physical D(Nonlinear Phenomena),1989,35(3):395-424.
    [14]SIMON B.Spectral analysis of rank one perturbations and applications[J].CRM Lecture Notes,1995(8):109-149.
    [15]王爱生,欧吉坤.无几何距离组合联合MW组合探测周跳的改进算法[J].数据采集与处理,2007,22(4):468-474.