Digital radio frequency memory linear range gate stealer spectrum

Berger, S.

doi:10.1109/taes.2003.1207279

Cited by 143 publications

(70 citation statements)

References 10 publications

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“…So there are quantization errors between the simulated time delay and real time delay. The coherence of the simulated pulses is heavily affected by the magnitude of the quantization errors [7,8]. Suppose that the step size (time delay resolution) of the simulated time delay is T dl ¼ 1=f dl , then the simulated time delay is written as…”

Section: Echo Model Of the Simulated Target With Time Delay Errorsmentioning

confidence: 99%

“…While in case of ISAR MTS, such as [2,3,4], the time delay of simulated echoes varies discretely. The impact of discrete time delay on the coherence of simulated echoes is firstly discussed in [7] in the case of DRFM. Then more detailed discussion of the coherence of the simulated echoes is given in [8].…”

Section: Introductionmentioning

confidence: 99%

“…Due to the discrete time delay, the simulated echoes are not very coherent and the ISAR image would be blurred. But none of them [2,3,4,7,8] had proposed a feasible method of solving the problem caused by the discrete time delay of the ISAR MTS.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Design of a coherent inverse synthetic aperture radar moving target simulator

Zhang

Xie

Wang

et al. 2014

IEICE Electron. Express

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Generally, the time delay of simulated pulses generated by inverse synthetic aperture radar (ISAR) moving target simulator (MTS) is changing discretely with time. In this case, there must be time delay errors between simulated pulses and real pulses reflected by real target. As a result, the coherence of the simulated pulses will be worsened and the ISAR image would be blurred due to the time delay errors. In order to solve the problem, a compensating technique consisting of two steps is proposed. Firstly, if the simulated pulse and the real pulse are located at different range cells, move the simulated pulse into the range cells at which the real pulse are located. Secondly, compensate the phase errors between simulated pulse and real pulse. After step two, at the efficient sampling time instants, the digital samples corresponding to the simulated pulse are equal to that constructed from the real pulse. So the radar will treat the simulated target as a real target. In other words, the coherence and the ISAR image quality of the simulated target are guaranteed. The simulation results demonstrate the efficiency of the proposed technique.

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Section: Echo Model Of the Simulated Target With Time Delay Errorsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Design of a coherent inverse synthetic aperture radar moving target simulator

Zhang

Xie

Wang

et al. 2014

IEICE Electron. Express

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show abstract

“…It can analyze the parameters of the intercepted radar signals rapidly, and produce jamming signal rapidly and repeat it in the current radar repetition interval to form high-fidelity track jamming [4]. With the capability of high speed sampling and replication of the wide band radar signals, the DRFM is widely used in the active coherent jamming [5], and the scatter-wave jamming (SWJ) for countering radar based on the DRFM has been proposed [6].…”

Section: Introductionmentioning

confidence: 99%

A new airborne self-protection jammer for countering ground radars based on sub-Nyquist

Almslmany

Cao

Wang

2015

IEICE Electron. Express

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Deception jammer is the most effective technique for spoofing a radar system. In this paper a new model for airborne self-protection jammer was proposed, this model provides a countering technique to the ground radars. It is used for generating a deceptive jamming signal using digital radio frequency memory (DRFM) based on sub-Nyquist sampling, it shows that under sampling with lower sampling rates will be useful in generating a multiple deceptive false target signals with a better resolution, it has greatly reduced the demands on sampling rate, processing time, and power transmitted.

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“…Actually, the jamming method based on the rotating angular reflector is a passive jamming technique and the reflector array may be difficult to set up especially in some aerospace targets, such as aircraft and ballistic targets on which space is limited. The digital radio frequency memory (DRFM) is widely used in radar active coherent jamming [6,[23][24][25][26]. With the capability of high speed sampling, DRFM reduces production costs and achieves a wide bandwidth.…”

Section: Introductionmentioning

confidence: 99%

Rotational Micro-Motion Modulated Jamming for Countering Isar Based on Intermittent Sampling Repeater

Pan¹,

Wang²,

Feng³

et al. 2013

PIER C

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Abstract-The intermittent sampling repeater jamming (ISRJ) can only produce fake point scatterers in the down-range, while the timevarying frequency induced by rotational micro-motion dynamics blurs the image in the cross-range. This paper focuses on the combination of the above two methods to counter the inverse synthetic aperture radar (ISAR). Based on the signal models of coherent ISAR signal processing, principles of the jamming are derived. The key jamming parameters and the selection criteria are determined by two steps. Finally, the validity of the proposed algorithm is demonstrated using the numeric simulations and simulations based on the measured data.

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Digital radio frequency memory linear range gate stealer spectrum

Cited by 143 publications

References 10 publications

Design of a coherent inverse synthetic aperture radar moving target simulator

Design of a coherent inverse synthetic aperture radar moving target simulator

A new airborne self-protection jammer for countering ground radars based on sub-Nyquist

Rotational Micro-Motion Modulated Jamming for Countering Isar Based on Intermittent Sampling Repeater

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