Abstract

On space remote sensing stereo mapping field, the angle variation between the star sensor’s optical axis and the earth observation camera’s optical axis on-orbit affects the positioning accuracy, when optical mapping is without ground control points (GCPs). This work analyses the formation factors and elimination methods for both the star sensor’s error and the angles error between the star sensor’s optical axis and the earth observation camera’s optical axis. Based on that, to improve the low attitude stability and long calibration time necessary of current satellite cameras, a method is then proposed for real-time on-orbit calibration of the angles between star sensor’s optical axis and the earth observation camera’s optical axis based on the principle of auto-collimation. This method is experimentally verified to realize real-time on-orbit autonomous calibration of the angles between the star sensor’s optical axis and the earth observation camera’s optical axis.

Details

Title
REAL-TIME ON-ORBIT CALIBRATION OF ANGLES BETWEEN STAR SENSOR AND EARTH OBSERVATION CAMERA FOR OPTICAL SURVEYING AND MAPPING SATELLITES
Author
Liu, W 1 ; Wang, H 2 ; Jiang, W 2 ; Qian, F 3 ; Zhu, L 4 

 Xi’an Research Institute of Surveying and Mapping, No.1 Middle Yanta Road, Xi’an, China; Xi’an Research Institute of Surveying and Mapping, No.1 Middle Yanta Road, Xi’an, China 
 State Key Laboratory of Integrated Service Network, Xidian University, Xi’an, China; State Key Laboratory of Integrated Service Network, Xidian University, Xi’an, China 
 Information Engineering University, Zhengzhou, China; Information Engineering University, Zhengzhou, China 
 Centre of TH-Satellite of China, Beijing, China; Centre of TH-Satellite of China, Beijing, China 
Pages
583-588
Publication year
2019
Publication date
2019
Publisher
Copernicus GmbH
ISSN
21949042
e-ISSN
21949050
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2585376999
Copyright
© 2019. This work is published under https://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.