Recurrent neural network approach for trajectory prediction of uncontrolled space object reentry반복 신경망 회로를 이용한 지구재진입 물체 궤적 예측 연구

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The trajectory modeling and re-entry prediction of uncontrolled space object is a challenging research area. Many previous studies have been conducted by using orbital dynamics, optimization technique and parameter estimation. In this paper, we have proposed new approach to predict re-entry trajectory of space object by using recurrent neural network. These deep learning models are based on LSTM and sequence-to-sequence method. Both simulated dataset and real flight dataset were validated by comparing the predicted trajectory with ground truth data. The main results from this study can be an alternative or a supplement for enhancement of prediction accuracy for re-entered space object in the future, instead of classical physics-based re-entry prediction. We verified our strategy for uncontrolled re-entry objects including different reentry objects, and got precise prediction results.
Advisors
Bang, Hyochoongresearcher방효충researcher
Description
한국과학기술원 :항공우주공학과,
Publisher
한국과학기술원
Issue Date
2021
Identifier
325007
Language
eng
Description

학위논문(박사) - 한국과학기술원 : 항공우주공학과, 2021.8,[vi, 110 p. :]

Keywords

Reentry▼aSpace object▼aRecurrent neural network▼aDeep learning▼aTrajectory prediction; 지구 재진입▼a우주물체▼a반복 신경망 회로▼a딥러닝▼a궤적 예측

URI
http://hdl.handle.net/10203/295771
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=962379&flag=dissertation
Appears in Collection
AE-Theses_Ph.D.(박사논문)
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