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- Title
Deceptive Jamming Method with Micro-Motion Property Against ISAR.
- Authors
Ning TAI; Chao WANG; Liguo LIU; Weiwei WU; Naichang YUAN
- Abstract
Airborne target's micro-motion such as rotation or vibration causes phase modulation, termed as micro- Doppler effect, into radar signals. The feature of micromotion is one of the most obvious features for radar recognition in mid-course phase. In traditional works, it is assumed that the micro-motion of the scatterer is the same as the ballistic target. However, with the variation of the aspect angle of ISAR, the position of the scatterer changes. In this paper, the movement of a ballistic missile in mid-course is modeled and analyzed. A false target jamming method is proposed by combining the micro-motion modulation and the electromagnetic scattering modulation. Compared with the methods using ideal point models, our method is able to generate a vivid false target with structural information, micro-motion and variation of the scatterer's RCS. The micro-motion effect of the false target is presented through ISAR imaging and time-frequency analysis. The effectiveness and correctness of the algorithm is verified by simulation.
- Subjects
RADIO interference; INVERSE synthetic aperture radar; PHASE modulation; REMOTE sensing; SIGNAL-to-noise ratio; ELECTROMAGNETIC wave scattering
- Publication
Radioengineering, 2017, Vol 26, Issue 3, p813
- ISSN
1210-2512
- Publication type
Article
- DOI
10.13164/re.2017.0813