ISPRS-Annals ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences ISPRS-Annals ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci. 2194-9050 Copernicus Publications Göttingen, Germany 10.5194/isprs-annals-IV-3-193-2018 COMPARISON OF DIFFERENT ATTITUDE CORRECTION MODELS FOR ZY-3 SATELLITE IMAGERY Song Wenping 1 Liu Shijie 1 Tong Xiaohua 1 Niu Changling 2 Ye Zhen 1 Zhang Han 1 Jin Yanmin 1 College of Surveying and Geo-Informatics, Tongji University, 1239 Siping Road, Shanghai, China Qingdao Surveying & Mapping Institute, Qingdao, China 23 04 2018 IV-3 193 196 Copyright: © 2018 Wenping Song et al. 2018 This work is licensed under the Creative Commons Attribution 4.0 International License. To view a copy of this licence, visit https://creativecommons.org/licenses/by/4.0/ This article is available from https://isprs-annals.copernicus.org/articles/IV-3/193/2018/isprs-annals-IV-3-193-2018.html The full text article is available as a PDF file from https://isprs-annals.copernicus.org/articles/IV-3/193/2018/isprs-annals-IV-3-193-2018.pdf

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.