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Extended Interrupted Sampling Repeater Jamming Against Nonlinear Frequency Modulation Waveforms
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DOI：10.1109/TAES.2025.3627168.png)
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Abstract
En 中文
Interrupted sampling repeater jamming (ISRJ) has attracted extensive attention in radar electronic countermeasures due to its low time delay and strong coherence. However, the jamming effectiveness of ISRJ is closely related to waveform characteristics, often failing to produce the desired multi-false-target deception effect. To address this issue, an extended ISRJ (EISRJ) method focusing on the construction of a frequency-domain periodic sampling pattern is proposed, which can realize deception jamming effects, similar to ISRJ on linear frequency modulation (LFM) waveforms, for various nonlinear frequency modulation (NLFM) waveforms by simply using a nonperiodic sampling function. Based on the principle of stationary phase, the intrinsic mechanism behind why ISRJ achieves multi-false-target deception effects on LFM waveforms but fails on NLFM waveforms is revealed from the frequency-domain perspective. Building upon this insight, the EISRJ theory, based on waveform time–frequency modulation correspondence and the design of extended interrupted sampling functions, is established. Implementation analysis indicates that electromagnetic metamaterials have advantages over traditional digital radio frequency memory-based jammers in achieving nonperiodic interrupted sampling and retransmission, without the need to address transceiver antenna isolation issues. Simulation experiments across multiple parameters and NLFM waveforms further validate the correctness and superiority of the EISRJ.
Keywords:
Deception jamming
electromagnetic (EM) metamaterials
interrupted sampling repeater jamming (ISRJ)
nonlinear frequency modulation (NLFM) waveforms
radar electronic countermeasures
Journal
IF:
5.7
Papers:
686
Citations:
2.4W