On deception jamming for countering LFM radar based on periodic 0-π phase modulation

Shi, Qingzhan; Tai, Nan-Ching; Wang, Chao; Yuan, Naichang

doi:10.1016/j.aeue.2017.09.010

Cited by 19 publications

(3 citation statements)

References 13 publications

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“…In the following, we try to explain the influence on the target's azimuth size caused by the errors in λ and ω. According to (25) and (27), the azimuth size of the false target is inversely proportional to the estimating value of λ or ω. The false target is stretched in azimuth direction if the estimating value is smaller than the true value, shown in Fig.…”

Section: Simulationsmentioning

confidence: 99%

“…After reflected by the target, the jamming signal contains all the target's information, which makes the jamming signal similar to the true target echo. Based on the model of scatter-wave jamming, the sub-Nyquist jamming [26], the 0-π phase modulation method [27]- [29], and the micro-motion jamming method [30], are developed and analyzed. Nevertheless, the application of scatter-wave method is quite difficulty because the jammer's receiving antenna must head to ISAR and the transmitting antenna should point to the real target.…”

Section: Introductionmentioning

confidence: 99%

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A Two-Dimensional Frequency Modulation Deception Jamming Against ISAR

Tai

Lin

et al. 2019

IEEE Access

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This paper proposes a false target jamming method for countering ISAR based on twodimensional frequency modulation. The target template is created according to the ISAR image of a true target. Then the range modulation signal, of which the frequency relates to each range cell of the template, is generated using direct digital synthesizer. The creation of modulation signal can be implemented parallel to accelerate the algorithm. All the range modulation signals are added up after amplitude adjustment and Doppler phase modulation. At last the jamming signal is derived from the multiplication between the intercepted radar signal and the modulation signal. Using the property of linear frequency modulated signal and frequency modulation, the jamming signal creates a false target of high fidelity after ISAR imaging. The proposed method is real-time when producing a false target with simple structure. For a template consists of a great many scatterers, the jamming algorithm is separated into real-time stage and off-line stage, which fulfills the generation of modulation signal after obtaining the radar parameters. The jamming effect on ISAR is presented through simulation results and the validity of the method is verified.

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Section: Simulationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Two-Dimensional Frequency Modulation Deception Jamming Against ISAR

Tai

Lin

et al. 2019

IEEE Access

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“…Recently, the jamming method based on phase modulation has attracted great attention [15]. By the periodic '�1' phase modulation on the radar signal, the multiple false target deception jamming effects can be obtained [16][17][18]. It effectively avoids the energy loss by using '�1' phase modulation instead of the '0-1' amplitude modulation.…”

Section: Introductionmentioning

confidence: 99%

Flexible blanket synthetic aperture radar jamming using joint frequency and phase modulation

Liu

et al. 2023

IET Radar Sonar & Navi

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Synthetic Aperture Radar (SAR) jamming is of vital significance in the national defence aspect. In this study, a flexible blanket jamming method against SAR is proposed using joint frequency and phase modulation. The proposed method can form two-dimensional square-shaped blanket sidelobes in the SAR image by coded phase modulation in both fast and slow time domain. Then an extra frequency modulation is further executed to flexibly adjust the jamming centre. The target of interest (TOI) can get more effectively protected according to the different relative locations between the TOI and jammer. On this basis, the jamming performance evaluation and parameter design principles are discussed in detail. Finally, the validity of the proposed jamming method is verified by both the Yake-42 aircraft simulation and measured SAR data experiment.

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