Three-dimensional Interferometric Imaging and Micro-motion Feature Extraction of Rotating Space Targets Based on Narrowband Radar

Jian HU; Ying LUO; Qun ZHANG; Le KANG; Qifang He

doi:10.11999/JEIT180372

Volume 41 Issue 2

Jan. 2019

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Article Navigation > Journal of Electronics & Information Technology > 2019 > 41(2): 270-277

Jian HU, Ying LUO, Qun ZHANG, Le KANG, Qifang He. Three-dimensional Interferometric Imaging and Micro-motion Feature Extraction of Rotating Space Targets Based on Narrowband Radar[J]. Journal of Electronics & Information Technology, 2019, 41(2): 270-277. doi: 10.11999/JEIT180372

Citation:

Jian HU, Ying LUO, Qun ZHANG, Le KANG, Qifang He. Three-dimensional Interferometric Imaging and Micro-motion Feature Extraction of Rotating Space Targets Based on Narrowband Radar[J]. Journal of Electronics & Information Technology, 2019, 41(2): 270-277. doi: 10.11999/JEIT180372

Citation:

Jian HU, Ying LUO, Qun ZHANG, Le KANG, Qifang He. Three-dimensional Interferometric Imaging and Micro-motion Feature Extraction of Rotating Space Targets Based on Narrowband Radar[J]. Journal of Electronics & Information Technology, 2019, 41(2): 270-277. doi: 10.11999/JEIT180372

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Three-dimensional Interferometric Imaging and Micro-motion Feature Extraction of Rotating Space Targets Based on Narrowband Radar

doi: 10.11999/JEIT180372

Jian HU^{1, 2
,
,},
Ying LUO^{1, 3, 4},
Qun ZHANG^{1, 3, 4},
Le KANG^{1, 3},
Qifang He^{1, 5}

1.
Institute of Information and Navigation, Air Force Engineering University, Xi’an 710077, China
2.
95633 PLA Troop, Qionglai 611531, China
3.
Collaborative Innovation Center of Information Sensing and Understanding, Xi’an 710077, China
4.
Key Laboratory for Information Science of Electromagnetic Waves (Ministry of Education), Fudan University, Shanghai 200433, China
5.
93534 PLA Troop, Tianjin 301700, China

Funds: The National Natural Science Foundation of China (61571457, 61471386), The Youth Science and Technology Nova Program of Shaanxi Province (2016KJXX-49)

Received Date: 2018-04-23
Rev Recd Date: 2018-11-01

Available Online: 2018-11-12

Publish Date: 2019-02-01

Abstract

Abstract

Inspired by the idea of multi-antenna interferometric processing in Interferometric Inverse Synthetic Aperture Radar (InISAR), by utilizing an L-shaped three-antenna imaging model, a Three-Dimensional (3-D) interferometric imaging and micro-motion feature extraction method for rotating space targets is proposed. Based on the integration of micro-Doppler (m-D) effect theory and multi-antenna interferometry processing technology, the m-D curves corresponding to different scatterers are obtained on the time-frequency plane and separated via Viterbi algorithm effectively, and then the projected coordinates of scatterers along the direction of baselines are reconstructed by interferometric processing. The height information of scatterers is solved by ellipse fitting, and 3-D imaging for the rotating space target is realized. Meanwhile, some 3-D micro-motion features are exactly extracted during imaging. Simulation results validate the effectiveness and the robustness of the method.
- Narrowband radar,
- 3-D interferometric imaging,
- Space target,
- Micro-motion feature extraction

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References(12)

References

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