资源三号01星及02星星载GPS天线PCO、PCV在轨估计及对精密定轨的影响

袁俊军; 赵春梅; 吴琼宝

doi:10.11947/j.AGCS.2018.20170703

测绘学报 >

2018 , Vol. 47 >Issue 5: 672 - 682

DOI: https://doi.org/10.11947/j.AGCS.2018.20170703

中国测绘地理信息学会2017年青年优秀论文

资源三号01星及02星星载GPS天线PCO、PCV在轨估计及对精密定轨的影响

袁俊军 ,
赵春梅 ,
吴琼宝

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1. 山东科技大学测绘科学与工程学院, 山东青岛 266590;
2. 中国测绘科学研究院, 北京 100830;
3. 煤炭工业济南设计研究院有限公司, 山东济南 250031

袁俊军(1991-),男,硕士生,研究方向为低轨卫星精密定轨。E-mail:1558755464@qq.com

收稿日期: 2017-12-11

修回日期: 2018-02-28

网络出版日期: 2018-06-01

基金资助

国家自然科学基金（41774013）

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Phase Center Offset and Phase Center Variation Estimation In-flight for ZY-3 01 and ZY-3 02 Spaceborne GPS Antennas and the Influence on Precision Orbit Determination

YUAN Junjun ,
ZHAO Chunmei ,
WU Qiongbao

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1. College of Geodesy and Geomatics, Shandong University of Science and Technology, Qingdao 266590, China;
2. Chinese Academy of Surveying and Mapping, Beijing 100830, China;
3. Coal Industry Ji'nan Design and Research Co. Ltd, Ji'nan 250031, China

Received date: 2017-12-11

Revised date: 2018-02-28

Online published: 2018-06-01

Supported by

The National Natural Science Foundation of China (No.41774013)

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摘要

资源三号01星与02星作为我国重要的遥感立体测绘卫星，承担了地理产品生产以及国土资源调查等任务。其中，高精度的卫星轨道确定是完成卫星任务的必备条件。资源三号01星与02星都搭载国产双频GPS接收机和SLR反射器来进行精密定轨和独立定轨精度检核。在定轨过程中，星载GPS接收机天线的PCO误差和PCV误差是制约进一步提高定轨精度的重要因素。尽管卫星入轨前获取GPS接收机天线的PCO先验值，本文通过在轨估计PCO，分析了PCO各个方向上的分量估计的可行性，发现通过使用在轨PCO，SLR检核显示ZY-3 01星和ZY-3 02星轨道RMS值分别提高了0.331 mm、0.399 mm。本文利用直接法和残差法估计了两颗卫星星载GPS接收机天线的PCV模型，整体量级在[-15 mm 15 mm]。通过使用在轨估计的PCV模型（10°×10°），ZY-3 01星SLR检核结果RMS值提高了2.143 mm（直接法模型）、1.628 mm（残差法模型），重叠弧段对比在三维位置上提高了11.377 mm（直接法模型）、13.903 mm（残差法模型），ZY-3 02星SLR检核结果RMS值提高了0.727 mm（直接法模型）、0.692 mm（残差法模型），重叠弧段对比在三维位置上提高了1.736 mm（直接法模型）、1.548 mm（残差法模型）。本文进一步探讨了PCV模型分辨率（10°×10°，5°×5°，2°×2°）对精密定轨的影响，在综合考虑计算效率、存储空间、提高幅度等因素后，发现使用残差法在轨估计5°×5° PCV模型是较好的选择。

关键词： 资源三号卫星; 精密定轨; 天线相位中心偏差; 天线相位中心变化; 精度影响

本文引用格式

袁俊军 , 赵春梅 , 吴琼宝 . 资源三号01星及02星星载GPS天线PCO、PCV在轨估计及对精密定轨的影响[J]. 测绘学报, 2018 , 47(5) : 672 -682 . DOI: 10.11947/j.AGCS.2018.20170703

Abstract

ZY-3 01 and ZY-3 02 satellites, as important remote sensing stereoscopic mapping satellites in China, undertake the tasks of production of geographic products, land resource investigation and so on. Precision orbit determination(POD) is a prerequisite for the success of ZY-3 01 and ZY-3 02 missions. Dual-frequency GPS receiver and SLR reflector manufactured by China play significant roles in POD and independent orbits checkout. Although PCO priori values were obtained before satellites launched,by PCO estimation in-flight, this paper analyses the feasibility of PCO in different directions and finds ZY-3 01 and ZY-3 02 SLR RMS checkouts are improved 0.331 mm,0.399 mm respectively. Further, this paper estimates PCV models of ZY-3 01 and ZY-3 02 spaceborne GPS antennas using direct approach and residual approach and their PCV models can reach[-15 mm 15 mm]. Through the use of PCV models(10°×10°), ZY-3 01 orbits SLR checkouts are improved 2.143 mm (direct approach), 1.628 mm (residual approach), orbit accuracy in 3D of overlapping arcs are improved 11.377 mm (direct approach),13.903 mm (residual approach), ZY-3 02 orbits SLR checkouts are improved 0.727 mm (direct approach),0.692 mm (residual approach), orbit accuracy in 3D of overlapping arcs are improved 1.736 mm (direct approach),1.548 mm(residual approach).The effect of PCV model resolution (10°×10°,5°×5°,2°×2°) on POD is further discussed in this paper. After comprehensive consideration of computational efficiency, storage space, increase amplitude and other factors, 5°×5° PCV model by residual approach is the best choice.

Key words： ZY-3 satellites; precision orbit determination; antenna phase center offset; antenna phase center variation; precision influence

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