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http://dx.doi.org/10.5139/JKSAS.2015.43.10.902

Mono-Vision Based Satellite Relative Navigation Using Active Contour Method  

Kim, Sang-Hyeon (Korea Advanced Institute of Science and Technology)
Choi, Han-Lim (Korea Advanced Institute of Science and Technology)
Shim, Hyunchul (Korea Advanced Institute of Science and Technology)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.43, no.10, 2015 , pp. 902-909 More about this Journal
Abstract
In this paper, monovision based relative navigation for a satellite proximity operation is studied. The chaser satellite only uses one camera sensor to observe the target satellite and conducts image tracking to obtain the target pose information. However, by using only mono-vision, it is hard to get the depth information which is related to the relative distance to the target. In order to resolve the well-known difficulty in computing the depth information with the use of a single camera, the active contour method is adopted for the image tracking process. The active contour method provides the size of target image, which can be utilized to indirectly calculate the relative distance between the chaser and the target. 3D virtual reality is used in order to model the space environment where two satellites make relative motion and produce the virtual camera images. The unscented Kalman filter is used for the chaser satellite to estimate the relative position of the target in the process of glideslope approaching. Closed-loop simulations are conducted to analyze the performance of the relative navigation with the active contour method.
Keywords
Relative Navigation; Proximity Operation; Image Tracking; Active Contour Method; 3D Virtual Reality; Glideslope Approach Method;
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Times Cited By KSCI : 3  (Citation Analysis)
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