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| Three-dimensional Interferometric Imaging and Micro-motion Feature Extraction of Ballistic Targets in Wideband Radar |
| HU Jian①② LUO Ying①②③ ZHANG Qun①② SUN Yuxue①② HU Chao① |
①(Institute of Information and Navigation, Air Force Engineering University, Xi’an 710077, China)
②(Collaborative Innovation Center of Information Sensing and Understanding, Xi’an 710077, China)
③(Key Laboratory for Radar Signal Processing, Xidian University, Xi’an 710071, China) |
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Abstract The Three-Dimensional (3-D) imaging and 3-D micro-motion feature extraction techniques for ballistic targets based on the micro-Doppler (m-D) effect theory can provide significant information for target recognition and ballistic missile defense. The idea of multi-antenna interferometry processing from Interferometric Inverse Synthetic Aperture Radar (InISAR) is introduced into the 3-D imaging and 3-D micro-motion feature extraction of ballistic targets in the paper. Based on the integration of m-D effect theory and multi-antenna interferometry processing technology, the true 3-D image of target is obtained. The parameters of micro-motion and target structure are extracted by utilizing the reconstructed 3-D coordinates of target. Simulations are given to validate the effectiveness and robustness of the proposed algorithm.
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Received: 25 October 2016
Published: 11 May 2017
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| Fund: The National Natural Science Foundation of China (61571457, 61471386), The Youth Science and Technology Nova Program of Shaanxi Province (2016KJXX-49) |
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Corresponding Authors:
HU Jian
E-mail: hujianinstar@163.com
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