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Proceedings Paper

Relative state parameters from images: testing system, algorithms, and experiment results
Author(s): Xiaoping Du; Jiguang Zhao; Dexian Zeng
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Paper Abstract

Taking the measurement of relative state parameters between spacecrafts as research object, this paper put forward an optical method based on monocular computer vision and target features, designed the main structure of the measure system, built the ground experiment system. Also, the problems of some key technology had been solved effectively in this paper, like the design of the structure of the feature targets, the prober, the interface circuit, and the measure method. It brought forward 3 kinds of high definition relative state measure methods between spacecrafts, which are based on single frame images and target features, the Iterated Extended Kalman Filtering (IEKF) technology and the Reconstruction of high resolution images. Through the simulations and the ground experiments, we found that the combination of the 3 kinds of methods, can not only ensure the high definition relative state measure of different interaction distances, but also increased the stability and reliability of the measure greatly, as on the distance of 50 meters, the stable measure definition can reach the centimeters' order-of-magnitude.

Paper Details

Date Published: 6 August 2009
PDF: 8 pages
Proc. SPIE 7384, International Symposium on Photoelectronic Detection and Imaging 2009: Advances in Imaging Detectors and Applications, 73841Q (6 August 2009); doi: 10.1117/12.835664
Show Author Affiliations
Xiaoping Du, The Academy of Equipment Command and Technology (China)
Jiguang Zhao, The Academy of Equipment Command and Technology (China)
Dexian Zeng, The Academy of Equipment Command and Technology (China)


Published in SPIE Proceedings Vol. 7384:
International Symposium on Photoelectronic Detection and Imaging 2009: Advances in Imaging Detectors and Applications

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