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Published in:
2020 | OriginalPaper | Chapter
GEO Debris Orbit Determination Method Based on Space-Based Optical Observation
Authors : Dong Han, Yin Zhang, Lidong Qiang
Published in: Signal and Information Processing, Networking and Computers
Publisher: Springer Singapore
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Abstract
Space debris has a great threat to spacecraft safety. GEO fragments are difficult to measure by laser or radar due to the distance. Using two observation satellites to form a certain observation baseline can be used to determine the orbit of GEO space debris. The feasibility of observation is discussed, the positioning accuracy under different observational geometry conditions is estimated, and the search mode of the observation satellite and the working mode of the observation camera are proposed. For the orbit determination algorithm, the expressions of observations and related partial derivatives are given, and digital simulation of small inclination fragments and large inclination fragments are given. For the fragments with different inclination, the observation time of two satellites is different, the observation time of the small inclination fragments is longer, the geometric conditions are better, and the orbit determination accuracy is also slightly higher.