Abstract
Based on the synthetic aperture radar (SAR) geometric model, a novel, fast algorithm of large scene deceptive jamming against the space-borne SAR is proposed. First, we divide the jamming scene template into sub-templates according to the depth of focus in the range dimension. Next, each sub-template is decomposed into the slow-time-dependent and slow-time-independent terms in the range frequency-azimuth time domain. The slow-time-independent terms are generated off-line while the slow-time-dependent terms are generated by real-time 1-D frequency modulation. Then, the sub-templates are convolved with the intercepted SAR signals simultaneously. Finally, fast deceptive jamming is achieved by incorporating all the sub-templates together. In the proposed method, the two-step realization of the sub-templates and the parallel sub-block processing improves the algorithm efficiency. The simulation results prove the validity of the proposed algorithm.
Original language | English |
---|---|
Article number | 6542029 |
Pages (from-to) | 4486-4495 |
Number of pages | 10 |
Journal | IEEE Transactions on Geoscience and Remote Sensing |
Volume | 51 |
Issue number | 8 |
DOIs | |
State | Published - 2013 |
Externally published | Yes |
Keywords
- Deceptive jamming
- large scene
- space-borne SAR
- synthetic aperture radar (SAR)