NDLI: On-orbit calibration of domestic APS star tracker

Content Provider	IEEE Xplore Digital Library
Author	Junfeng Xie Hongzhao Tang Xianhui Dou Jingqi Long
Copyright Year	2014
Description	Author affiliation: Third Heilongjiang Surveying & Mapping Eng. Inst., Harbin, China (Jingqi Long) \|\| Satellite Mapping Applic. Center, State Bur. of Surveying & Mapping, Beijing, China (Junfeng Xie; Hongzhao Tang; Xianhui Dou)
Abstract	Star sensor, which is the key factor in remote sensing satellite geometric accuracy, became more and more important in attitude determination and is widely used in current remote sensing satellites during the last years, for its highest absolute attitude measuring accuracy. Although the parameters of the stellar camera underwent a quantitative pre-launch calibration, the strong vibration that a satellite suffers during its launch and the change of space environmental factors are the major reasons that cause the variation of the parameters of the stellar camera, which then lead to the deterioration in attitude measurement accuracy of star tracker. For ZY 3 domestic APS star sensors on-board application, this paper propose a new on orbit calibration method for stellar camera based on the angular distance, with analyzing the regularity of lens distortion change, of which interior orientation elements and the lens distortion are simultaneously calibrated and the corresponding formula is derived. The experimental results with stellar image data from ZY-3 satellite demonstrate the advancement and effectiveness of this calibration method in improving the calibration accuracy of the stellar camera parameters.
Starting Page	239
Ending Page	242
File Size	829804
Page Count	4
File Format	PDF
e-ISBN	9781479941841
DOI	10.1109/EORSA.2014.6927886
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-06-11
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Earth Geomagnetism on-orbit calibration attitude accuracy star tracker Cameras Polynomials Calibration interior elements of camera angular distance
Content Type	Text
Resource Type	Article

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