Multiple Targets Deception Jamming Against ISAR Using Electromagnetic Properties

Bo, Zhao; Zhou, Feng; Shi, Xiaoran; Wu, Qisong; Bao, Zheng

doi:10.1109/jsen.2014.2368985

Cited by 49 publications

(20 citation statements)

References 20 publications

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“…Especially with the development and maturity of digital radio frequency memory (DRFM) techniques, the DRFM-based jammer, also called DRFM repeat jammer [ 3 , 10 , 11 , 12 ], is capable of generating deceptive/false velocity targets by interrupting, storing, modulating and repeating the radar’s transmitted signal. In addition to jamming the detection of radar on translational motion targets by generating translational false targets (TFT), recent research [ 13 , 14 , 15 ] has shown that modern VDJ techniques have accomplished the generation of the micro motion false targets (MMFT) by modulating additional micro-Doppler frequency shift besides the Doppler frequency shift on its jamming signals. Hence, DRFM-based VDJ techniques severely threaten the survival of the PD radars in modern warfare.…”

Section: Introductionmentioning

confidence: 99%

A Sparse-Driven Anti-Velocity Deception Jamming Strategy Based on Pulse-Doppler Radar with Random Pulse Initial Phases

Sui

Wei

2018

Sensors

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This paper focuses on developing an anti-velocity jamming strategy that enhances the ability of a pulse-Doppler (PD) radar to detect moving targets in the presence of translational and/or micro motion velocity jamming generated by the digital radio frequency memory (DRFM) repeat jammers. The strategy adopts random pulse initial phase (RPIP) pulses as its transmitted signal and thus gets DRFM jammers not adaptable to the randomness of initial phase of the transmitted pulses in the pulse repetition interval (PRI) domain. The difference between the true target echo and the false target jamming signal at each PRI is then utilized to recognize the true and false target signals. In particular, an entropy based multi-channel processing scheme is designed to extract the information of the received signal without the assumption that true and false targets must be both included within one coherent processing interval (CPI). Information such as the component of the received signal (target echo only, jamming only or both) or the operating manner of DRFM repeat jammer can be gained (if jamming exists). Meanwhile, we solve the false target recognition problem under sparse theory frame and our previous work named the short-time sparse recovery (STSR) algorithm is introduced to recover the motion parameters of the true and/or false targets in the time-frequency domain. It should be pointed out that both the translational false target jamming and micro motion target jamming can be recognized in our strategy. The performance of the proposed strategy is compared with the correlated processing (CP) method used by most extant strategies. It is shown that the proposed strategy can successfully recognize the existence of true and/or false targets and keep its power in recovering corresponding motion parameters even when the jamming environment is strong.

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Section: Introductionmentioning

confidence: 99%

A Sparse-Driven Anti-Velocity Deception Jamming Strategy Based on Pulse-Doppler Radar with Random Pulse Initial Phases

Sui

Wei

2018

Sensors

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“…So deceptive jamming method which can be coherent or partial coherent with radar matched filter attracts more and more attentions. The jamming signal should contain the information as much the same as the real target echo and it makes the target's identification to be a hard task [12]. Through false target information modulation on the radar signals, sub-Nyquist sampling jamming signal can produce a train of false targets along the range direction [13].…”

Section: Introductionmentioning

confidence: 99%

Deceptive Jamming Method with Micro-motion Property Against ISAR

Liu¹,

Tai²,

Wu³

et al. 2017

RADIOENGINEERING

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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.

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“…The improved structure represents simplicity and flexibility, thus reducing the computation time and hardware constraints. Knowing that DIS method emulates target based on point models, Zhao proposes a method combing the translation modulation with the electromagnetic model to achieve more verisimilar false target [22]. By utilizing the electromagnetic scattering model, the false target contains the structural information, such as multiple scattering and shadowing.…”

Section: Introductionmentioning

confidence: 99%

Quasi-Coherent Noise Jamming to LFM Radar Based on Pseudo-random Sequence Phase-modulation

Tai¹,

Yuan²,

Pan³

2015

RADIOENGINEERING

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A novel quasi-coherent noise jamming method is proposed against linear frequency modulation (LFM) signal and pulse compression radar. Based on the structure of digital radio frequency memory (DRFM), the jamming signal is acquired by the pseudo-random sequence phase-modulation of sampled radar signal. The characteristic of jamming signal in time domain and frequency domain is analyzed in detail. Results of ambiguity function indicate that the blanket jamming effect along the range direction will be formed when jamming signal passes through the matched filter. By flexible controlling the parameters of interrupted-sampling pulse and pseudo-random sequence, different covering distances and jamming effects will be achieved. When the jamming power is equivalent, this jamming obtains higher process gain compared with non-coherent jamming. The jamming signal enhances the detection threshold and the real target avoids being detected. Simulation results and circuit engineering implementation validate that the jamming signal covers real target effectively.

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Multiple Targets Deception Jamming Against ISAR Using Electromagnetic Properties

Cited by 49 publications

References 20 publications

A Sparse-Driven Anti-Velocity Deception Jamming Strategy Based on Pulse-Doppler Radar with Random Pulse Initial Phases

A Sparse-Driven Anti-Velocity Deception Jamming Strategy Based on Pulse-Doppler Radar with Random Pulse Initial Phases

Deceptive Jamming Method with Micro-motion Property Against ISAR

Quasi-Coherent Noise Jamming to LFM Radar Based on Pseudo-random Sequence Phase-modulation

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