Acta Geodaetica et Cartographica Sinica ›› 2016, Vol. 45 ›› Issue (3): 282-290.doi: 10.11947/j.AGCS.2016.20150206

Previous Articles     Next Articles

On-orbit Geometric Parameters Refinement of Mapping Satellite-1 Triple Line Array Camera

GENG Hongyi1,2, GONG Zhihui1, GAO Chao2, YANG Jianfeng2, TANG Ke2   

  1. 1. Institute of Geographical Spatial Information, Information Engineering University, Zhengzhou 450001, China;
    2. Center of TH-Satellite of China, Beijing 102102, China
  • Received:2015-04-20 Revised:2015-12-21 Online:2016-03-20 Published:2016-03-25

Abstract: To find the model and method of on-orbit geometric refinement suitable for the triple line array camera of Mapping Satellite-1, this paper first analyzed the impact of the exterior orientation line element error on the geometric parameters refinement, then eliminated the high-frequency noise by the preprocessing of the attitude data, and compensated the low-frequency flutter of satellite platform in the course of flying by sine function and designed the constant angular error model for the lens of the triple line array camera. In addition, an interior orientation model, using directly pixel coordinates as observations, was constructed based on conventional additional parameter model and the combination of the best refinement model parameters and the solution strategy were determined by the unilateral control extrapolative location. The experiments show that the planar accuracy and vertical accuracy are about 1 GSD and 0.8 GSD by the proposed refinement plan and the rational distribution of GCPS.

Key words: Mapping Satellite-1, geometric parameters refinement, exterior orientation elements, interior orientation model, stereo positioning

CLC Number: