Total Rotation Vector Estimation of Space Target Combining InISAR Imaging and Micro-Doppler Feature Extraction

Rui GONG; Ling WANG; Chu XU; Daiyin ZHU

doi:10.11999/JEIT200648

Volume 43 Issue 3

Mar. 2021

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Article Navigation > Journal of Electronics & Information Technology > 2021 > 43(3): 640-649

Rui GONG, Ling WANG, Chu XU, Daiyin ZHU. Total Rotation Vector Estimation of Space Target Combining InISAR Imaging and Micro-Doppler Feature Extraction[J]. Journal of Electronics & Information Technology, 2021, 43(3): 640-649. doi: 10.11999/JEIT200648

Citation:

Rui GONG, Ling WANG, Chu XU, Daiyin ZHU. Total Rotation Vector Estimation of Space Target Combining InISAR Imaging and Micro-Doppler Feature Extraction[J]. Journal of Electronics & Information Technology, 2021, 43(3): 640-649. doi: 10.11999/JEIT200648

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Total Rotation Vector Estimation of Space Target Combining InISAR Imaging and Micro-Doppler Feature Extraction

doi: 10.11999/JEIT200648

Key Laboratory of Radar Imaging and Microwave Photonics of the Ministry of Education, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China

Funds: The National Natural Science Foundation of China(61871217), The Aeronautical Science Foundation of China (20182052011)

Received Date: 2020-08-30
Rev Recd Date: 2021-02-08

Available Online: 2021-02-20

Publish Date: 2021-03-22

Abstract

Abstract

One of the main purposes for space surveillance is to supervise the movement status of non-cooperative space targets, which is also the prerequisite for further on-orbit operations. Because of the rotation of disabled satellites and space debris, it is necessary to accurately obtain the rotation vector, including the rotation speed and the direction of the rotation axis. This paper proposes a novel estimation method to obtain the rotation vector of space targets, which can be simultaneously used to form the Three-Dimensional (3D) image. Firstly, the three-dimensional position coordinates and the effective rotation vector are obtained by the Interferometric Inverse Synthetic Aperture Radar (InISAR) technology. Then, the total rotation velocity is estimated by the micro-Doppler feature extraction. Finally, the total rotation vector is acquired by combining the effective rotation velocity and the rotation velocity along the radar Line-Of-Sight (LOS). The effectiveness of the proposed method is demonstrated by simulation experiments. Performance analysis shows that the method can provide us with accurate results in both rotation vector estimation and three-dimensional imaging.
- Inverse Synthetic Aperture Radar (ISAR),
- Interferometric ISAR(InISAR),
- Rotation vector,
- Micro-Doppler,
- Three-Dimensional(3D) imaging

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References(18)

References

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