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| Study on Micro-motion Feature Extraction and Imaging of Target with Rotating Parts in Bistatic ISAR |
| Zhu Ren-fei① Zhang Qun①② Luo Ying① Zhu Xiao-peng① |
①(Institute of Telecommunication Engineering, Air Force Engineering University, Xi’an 710077, China)
②(Key Laboratory of Wave Scattering and Remote Sensing Information (Ministry of Education),
Fudan University, Shanghai 200433, China) |
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Abstract Compared with the monostatic radar, micro-Doppler effect in bistatic radar has many differences due to its spatial complexity. In this paper, micro-Doppler effect of target with rotating parts is derived in the bistatic ISAR system. Characteristics and manifestation of micro-motion part in the range–slow-time plane is also analyzed. According to the effect produced by the system’s spatial relationship, a modified extended Hough transform is proposed to extract the micro-motion information from the range–slow-time plane. Simulations verify the correctness and effectiveness of the method in bistatic ISAR system.
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Received: 06 May 2009
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Corresponding Authors:
Zhang Qun
E-mail: zhangqunnus@gmail.com
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2010, Vol. 32 
