ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
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Articles | Volume IV-3
ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci., IV-3, 193–196, 2018
https://doi.org/10.5194/isprs-annals-IV-3-193-2018
ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci., IV-3, 193–196, 2018
https://doi.org/10.5194/isprs-annals-IV-3-193-2018

  23 Apr 2018

23 Apr 2018

COMPARISON OF DIFFERENT ATTITUDE CORRECTION MODELS FOR ZY-3 SATELLITE IMAGERY

Wenping Song1, Shijie Liu1, Xiaohua Tong1, Changling Niu2, Zhen Ye1, Han Zhang1, and Yanmin Jin1 Wenping Song et al.
  • 1College of Surveying and Geo-Informatics, Tongji University, 1239 Siping Road, Shanghai, China
  • 2Qingdao Surveying & Mapping Institute, Qingdao, China

Keywords: Systematic Errors, Attitude Quaternion, Rigorous Model, Attitude Angle, ZY-3 Satellite

Abstract. ZY-3 satellite, launched in 2012, is the first civilian high resolution stereo mapping satellite of China. This paper analyzed the positioning errors of ZY-3 satellite imagery and conducted compensation for geo-position accuracy improvement using different correction models, including attitude quaternion correction, attitude angle offset correction, and attitude angle linear correction. The experimental results revealed that there exist systematic errors with ZY-3 attitude observations and the positioning accuracy can be improved after attitude correction with aid of ground controls. There is no significant difference between the results of attitude quaternion correction method and the attitude angle correction method. However, the attitude angle offset correction model produced steady improvement than the linear correction model when limited ground control points are available for single scene.