多GNSS融合的北斗卫星精密定轨
收稿日期: 2014-02-25
修回日期: 2014-07-26
网络出版日期: 2014-12-02
基金资助
中国第二代卫星导航系统重大专项;信息工程大学博士研究生学位论文创新基金
Multi-GNSS Joint Precise Orbit Determination of BeiDou Navigation Satellites System
Received date: 2014-02-25
Revised date: 2014-07-26
Online published: 2014-12-02
刘伟平 郝金明 李建文 陈明剑 . 多GNSS融合的北斗卫星精密定轨[J]. 测绘学报, 2014 , 43(11) : 1132 -1138 . DOI: 10.13485/j.cnki.11-2089.2014.0186
Precise?orbit?productis?very?important?for?application?of?BeiDou?Navigation?Satellite?System.A?method?of?zero-differenced?multi-GNSS?joint?precise?orbit?determination?of?BeiDou?satellites?based?on?ambiguity?fixing?is?present.?The?realization?of?ambiguity?fixing?is?focused?on.?
The?real?data?is?analyzed,?and?the?results?show?that?the?three?dimensional?precision?of?GEO,?IGSO?and?MEO?can?respectively?reach?1.263m,?
0.241m?and?0.134m.?The?radial?precision?of?the?three?types?of?satellites?can?averagely?be?better?than?10cm,?and?that?of?IGSO?and?MEO?can?mostly?
be?better?than?5cm.?After?ambiguity?fixing,?the?three?dimensional?precision?of?BDS?is?improved?21.8%?averagely,?and?the?tangential?precision?is?
improved?most?obviously,?especially?for?GEO.
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