电离层延迟的区域CORS数据实时监测Real-time monitoring of ionospheric delay based on CORS data
辛星,桂维振,崔有祯,熊欢欢
摘要(Abstract):
针对区域电离层变化情况较为复杂,所确定的电离层模型系数难以反映其短时间内的变化情况问题,该文提出了利用旋转地图内插结合曲面拟合模型实现区域电离层实时监测方法。采用旋转地图内插IGS提供的电离层数据,能够有效补偿电离程度与太阳位置的强相关性,提高总电子含量内插精度;基于曲面拟合模型对区域电离层进行实时监测,实现了模型系数的实时更新。利用JSCORS网的双频观测数据,采用曲面拟合模型建立了实时的区域电离层监测模型,数据计算结果表明,其网内外精度分别优于0.81TECU和0.96TECU。
关键词(KeyWords): CORS;码间偏差;电离层;实时监测;总电子含量;曲面拟合模型;旋转地图
基金项目(Foundation): 北京工业职业技术学院重点科研课题项目(bgzykyz201411-1)
作者(Author): 辛星,桂维振,崔有祯,熊欢欢
DOI: 10.16251/j.cnki.1009-2307.2018.04.020
参考文献(References):
- [1]张瑞.多模GNSS实时电离层精化建模及其应用研究[D].武汉:武汉大学,2013.(ZHANG Rui.Theory and method on multimode GNSS real-time refinement ionospheric modeling and its application[D].Wuhan:Wuhan University,2013.)
- [2]胡伍生,聂文锋,高成发.利用CORS进行格网化电离层TEC实时监测[J].东南大学学报(自然科学版),2013,43(S2):219-224.(HU Wusheng,NIE Wenfeng,GAO Chengfa.Real-time monitoring of regional ionospheric TEC based on CORS with grid technology[J].Journal of Southeast University(Natural Science Edition),2013,43(S2):219-224.)
- [3]施闯,耿长江,章红平,等.基于EOF的实时三维电离层模型精度分析[J].武汉大学学报(信息科学版),2010,35(10):1143-1146.(SHI Chuang,GENG Changjiang,ZHANG Hongping,et al.Precision analysis of ionosphere tomography based on EOF[J].Geomatics and Information Science of Wuhan University,2010,35(10):1143-1146.)
- [4]WILSON B D,MANNUCCI A J.Instrumental biases in ionospheric measurements derived from GPS data[C]//Proceedings of International Technical Meeting of the Satellite Division of the Institute of Navigation.[S.l.]:[s.n.],1993.
- [5]席广永,邹东尧,赵进超,等.区域实时电离层延迟精化模型研究[J].测绘科学,2015,40(2):35-38.(XI Guangyong,ZOU Dongyao,ZHAO Jinchao,et al.Study on regional real-time ionospheric delay refined model[J].Science of Surveying and Mapping,2015,40(2):35-38.)
- [6]MANNUCCI A J,WILSON B D,EDWARDS C D.A new method for monitoring the earth’s ionospheric total electron content using the GPS global network[J].Proceedings Institute of Navigation,1993,22(2):1323-1332.
- [7]李征航,黄劲松.GPS测量与数据处理[M].武汉:武汉大学出版社,2010:104-105.(LI Zhenghang,HUANG Jinsong.GPS surveying and data processing[M].Wuhan:Wuhan University Press,2010:104-105.)
- [8]章红平.基于地基GPS的中国区域电离层监测与延迟改正研究[D].武汉:武汉大学,2006:1-138.(ZHANG Hongping.China regional ionospheric delay correction monitoring and GPS-based foundation[D].Wuhan:Wuhan University,2006:1-138.)
- [9]CUI F,XIE W.Algorithm of GPS phase smoothing pseudo-range based on adaptive attenuation factor Kalman filtering[J].Infrared&Laser Engineering,2015,5(8):5467-5467.
- [10]GAO Y,MCLELLAN J F,ABOUSALEM M A.Singlepoint GPS positioning accuracy using precise GPS data[J].Australian Surveyor,1997,42(4):185-192.
- [11]常青,张东和,萧佐,等.GPS系统硬件延迟估计方法及其在TEC计算中的应用[J].地球物理学报,2001,44(5):596-601.(CHANG Qing,ZHANG Donghe,XIAO Zuo,et al.A method for estimating GPS instrumental biases and its application in TEC calculation[J].Chinese Journal of Geophysics,2001,44(5):596-601.)
- [12]TU R,ZHANG H,GE M,et al.A real-time ionospheric model based on GNSS precise point positioning[J].Advances in Space Research,2013,52(6):1125-1134.
- [13]王五魁,刘长建,吴洪举.IGS电离层VTEC产品内插算法解析[J].全球定位系统,2013,38(6):17-21.(WANG Wukui,LIU Changjian,WU Hongju.Interpolating algorithm analysis of IGS ionosphere VTEC product[J].GNSS World of China,2013,38(6):17-21.)
- [14]LIANG W,LIMBERGER M,SCHMIDT M,et al.Combination of ground-and space-based GPS data for the determination of a multi-scale regional 4-D ionosphere model[M].Berlin:Springer,2015:751-758.
- [15]宋小勇,杨志强,焦文海,等.GPS接收机码间偏差(DCB)的确定[J].大地测量与地球动力学,2009,29(1):127-131.(SONG Xiaoyong,YANG Zhiqiang,JIAO Wenhai,et al.Determination of GPS receiver’s DCB[J].Journal of Geodesy and Geodynamics,2009,29(1):127-131.)
- [16]ZHANG D,JIN Y,SHI H,et al.The stability of the estimated GPS DCB and its connection with ionospheric variability[J].Egu General Assembly,2013(15):6596.