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Frontiers of Information Technology & Electronic Engineering >> 2022, Volume 23, Issue 4 doi: 10.1631/FITEE.2000575

Variational Bayesian multi-sparse component extraction for damage reconstruction of space debris hypervelocity impact

中国空气动力研究与发展中心超高速空气动力研究所,中国绵阳市,621000

Received: 2020-10-25 Accepted: 2022-04-20 Available online: 2022-04-20

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Abstract

To improve the survivability of orbiting spacecraft against space debris impacts, we propose an impact method. First, a multi-area damage mining model, which can describe damages in different spatial layers, is built based on an infrared thermal image sequence. Subsequently, to identify different impact damage types from infrared image data effectively, the inference is used to solve for the parameters in the model. Then, an image-processing framework is proposed to eliminate errors and compare locations of different damage types. It includes an image segmentation algorithm with an energy function and an image fusion method with . In the experiment, the proposed method is used to evaluate the complex damages caused by the impact of the secondary debris cloud on the rear wall of the typical Whipple shield configuration. Experimental results show that it can effectively identify and evaluate the complex damage caused by , including surface and internal defects.

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