测绘学报 ›› 2016, Vol. 45 ›› Issue (2): 127-130.doi: 10.11947/j.AGCS.2016.20150167

• 大地测量学与导航 •    下一篇

卫星摄影姿态测定系统低频误差补偿

王任享1 2, 王建荣1 2, 胡莘1 2   

  1. 1. 地理信息工程国家重点实验室, 陕西 西安 710054;
    2. 西安测绘研究所, 陕西 西安 710054
  • 收稿日期:2015-03-27 修回日期:2015-10-09 出版日期:2016-02-20 发布日期:2016-02-29
  • 通讯作者: 王建荣,E-mail: Jianrongwang@sina.com E-mail:Jianrongwang@sina.com
  • 作者简介:王任享(1933-),男,研究员,中国工程院院士,从事卫星摄影测量的理论和应用研究。

Low-frequency Errors Compensation of Attitude Determination System in Satellite Photogrammetry

WANG Renxiang1 2, WANG Jianrong1 2, HU Xin1 2   

  1. 1. State Key Laboratory of Geo-information Engineering, Xi'an 710054, China;
    2. Xi'an Institute of Surveying and Mapping, Xi'an 710054, China
  • Received:2015-03-27 Revised:2015-10-09 Online:2016-02-20 Published:2016-02-29

摘要: 姿态测定系统不仅存在高频误差,还存在与卫星轨道纬度及时间有关的低频误差,严重影响无地面控制点测量精度。本文分析了产生低频误差的因素及相关解决措施,并在天绘一号(TH-1)卫星工程中,利用光束法平差实现低频误差的自动检测与补偿处理,消除低频误差对定位精度的影响,最后进行了试验验证。试验结果表明:低频误差补偿技术,很好地解决了无地面控制定位系统误差问题,为实现天绘一号卫星全球定位精度的一致性发挥了重要作用。

关键词: 卫星摄影测量, 光束法平差, 低频误差补偿, 外方位元素, 定位精度

Abstract: In the attitude determination system exists not only the high-frequency errors, but also the low-frequency errors related to the satellite orbit latitude and time. The low-frequency errors would affect the location accuracy without GCPs, especially to the horizontal accuracy. In this paper, firstly, the factors that produce low-frequency errors and the solutions are analyzed. Secondly, the low-frequency errors are detected and compensated automatically during bundle adjustment in TH-1 satellite, thus the influence of location accuracy by low-frequency error is eliminated. At last, the verification is tested using data of TH-1. The experimental results show: low-frequency errors compensation can resolve the system error of position without GCP, and has played an important role in the consistency of global location accuracy for TH-1.

Key words: satellite photogrammetry, low-frequency errors compensation, bundle adjustment, elements of exterior orientation, location accuracy

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