北斗卫星天线相位中心改正模型精化及对精密定轨和定位影响分析

doi:10.11947/j.AGCS.2020.20200289

测绘学报 ›› 2020, Vol. 49 ›› Issue (9): 1101-1111.doi: 10.11947/j.AGCS.2020.20200289

北斗卫星天线相位中心改正模型精化及对精密定轨和定位影响分析

张勤¹, 燕兴元^1,2, 黄观文¹, 解世超¹, 曹钰¹

1. 长安大学地质工程与测绘学院, 陕西西安 710054;
2. 中山大学测绘科学与技术学院, 广东广州 510275

收稿日期:2020-06-30 修回日期:2020-08-21 发布日期:2020-09-19
通讯作者: 燕兴元 E-mail:yanxy35@mail.sysu.edu.cn
作者简介:张勤(1958-),女,博士,教授,博士生导师,主要从事GNSS和InSAR的理论和应用研究。E-mail:zhangqinle@263.net.cn
基金资助:
国家重点研发计划（2018YFC1505102）；国家自然科学基金面上项目（41774025；41731066）；陕西省技术创新指导专项基金（2018XNCGG05）；北斗二代重大专项（GFZX0301040308）

Refinement of BeiDou satellite antenna phase center correction model and its impact on precision orbit determination and positioning

ZHANG Qin¹, YAN Xingyuan^1,2, HUANG Guanwen¹, XIE Shichao¹, CAO Yu¹

1. College of Geology Engineering and Geomatics, Chang'an University, Xi'an 710054, China;
2. School of Geospatial Engineering and Science, Sun Yat-sen University, Guangzhou 510275, China

Received:2020-06-30 Revised:2020-08-21 Published:2020-09-19
Supported by:
The National Key Research and Development Program of China (No. 2018YFC1505102);The Programs of the National Natural Science Foundation of China (Nos. 41774025;41731066);The Special Fund for Technological Innovation Guidance of Shaanxi Province (No. 2018XNCGG05);The Grand Projects of the BDS-2 System (No. GFZX0301040308)

摘要/Abstract

摘要： 针对BDS-2和BDS-3卫星联合精密定轨和精密定位中高精度BDS-2 IGSO/MEO卫星天线相位中心改正在轨估计模型的缺失问题，本文采用了改进的PCV和z-offset参数估计方法，精化了BDS-2 IGSO/MEO卫星B1I/B3I无电离层组合PCC模型。数值验证结果表明：相比北斗官方发布的PCO地面标定值，本文精化的PCC模型使得精密轨道SLR残差的STD减小了0.6~2.4 cm，改善百分比为8.6%~33.3%；基于本文精化的BDS-2和已有BDS-3卫星精化的PCC模型使得精密定位浮点解在高程方向显著提升了9.5 mm（37.2%）。

关键词: 北斗二号, 北斗三号, 卫星天线相位中心改正模型, 联合精密定轨, 精密定位

Abstract: Aiming at the lack of high accurate antenna phase correction (PCC) model for the BDS-2 IGSO and MEO satellites, in the BDS-2 and BDS-3 satellites joint precision orbit determination (POD) and precise point positioning (PPP), in this paper, an improved method for estimating PCV and z-offset parameters is used to refine the B1I/B3I ionosphere-free linear combination PCC model for the BDS-2 IGSO and MEO satellites. Compared with the results obtained using the ground-calibrated PCO model published by BeiDou official, the STD of SLR residuals obtained by the POD using the refined PCC model is reduced by 0.6~2.4 cm, and the improvement percentage is about 8.6%~33.3%. The floating PPP solution results, based on the refined BDS-2 satellite PCC model in this paper and the existing BDS-3 PCC model, have been significantly improved by 9.5 mm (37.2%) in the elevation direction.

Key words: BDS-2, BDS-3, satellite antenna phase center correction model, joint precise orbit determination, precise point position

中图分类号:

P228.4

张勤, 燕兴元, 黄观文, 解世超, 曹钰. 北斗卫星天线相位中心改正模型精化及对精密定轨和定位影响分析[J]. 测绘学报, 2020, 49(9): 1101-1111.

ZHANG Qin, YAN Xingyuan, HUANG Guanwen, XIE Shichao, CAO Yu. Refinement of BeiDou satellite antenna phase center correction model and its impact on precision orbit determination and positioning[J]. Acta Geodaetica et Cartographica Sinica, 2020, 49(9): 1101-1111.

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北斗卫星天线相位中心改正模型精化及对精密定轨和定位影响分析

Refinement of BeiDou satellite antenna phase center correction model and its impact on precision orbit determination and positioning

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