测绘通报 ›› 2017, Vol. 0 ›› Issue (6): 13-16.doi: 10.13474/j.cnki.11-2246.2017.0180

• 学术研究 • 上一篇    下一篇

天绘一号卫星影像与行时对应关系检查方法研究

程家胜, 穆春迪, 王敏, 刘保成   

  1. 中国天绘卫星中心, 北京 102102
  • 收稿日期:2016-10-11 修回日期:2017-01-23 出版日期:2017-06-25 发布日期:2017-07-03
  • 作者简介:程家胜(1984-),男,硕士,主要从事航天摄影测量等方面的研究工作。E-mail:chengjias_heng@126.com
  • 基金资助:
    国家自然科学基金(61303188)

Checking Image-linetime Relationship for TH-01 Satellite

CHENG Jiasheng, MU Chundi, WANG Min, LIU Baocheng   

  1. Tianhui Satellite Center of China, Beijing 102102, China
  • Received:2016-10-11 Revised:2017-01-23 Online:2017-06-25 Published:2017-07-03

摘要: 天绘一号卫星是一颗传输型立体测绘卫星,其职能是实现全球无控精确定位。为此,后期处理过程中需要准确获知每行影像摄影时刻的卫星姿态和轨道数据,卫星产品中的行时文件起到了影像与姿轨数据对应的桥梁作用。本文在分析影像数据、行时文件、辅助数据3者间关系的基础上,通过试验方式验证了1A级影像与行时不对应时对产品定位精度的影响,最后提出了一种有效检查影像与行时文件对应关系的方法,并对该方法进行了试验验证。

关键词: 天绘一号卫星, 立体测绘, 姿态, 轨道, 行时文件

Abstract: The TH-01 satellite is a transmission type mapping satellite,it's able to realize global precise positioning without ground control point.However, precise satellite attitude and orbit parameters of every photographing time line are required in post process. Linetime data in archived satellite product actually serve as a bridge between image data and attitude and orbit data. We analyze the intrinsic relationship of image data,linetime data and auxiliary data, and the experiments demonstrate the influences of mismatch of 1A image and timeline data on positioning precision. Then, we propose an approach to checking the matching attribute of 1A image and timeline data. Processing results validate the availability of the proposed method.

Key words: TH-01 satellite, stereo mapping satellite, attitude, orbit, linetime data

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