Research on deceptive jamming technologies against SAR

Sun, Lei; Zhang, Hongrong; Tang, Yue; Chang-yao, Zhang

doi:10.1109/apsar.2009.5374233

Cited by 15 publications

(5 citation statements)

References 1 publication

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“…where B a is the Doppler bandwidth. By observing (19), we can reach the following conclusions: Firstly, the jamming only poses impacts on the rangedimensional image. Secondly, the number of false targets is directly related to the number of FDA elements.…”

Section: B Range Cell Migration Correction and Azimuth Compressionmentioning

confidence: 73%

“…Several typical deceptive jamming methods have been published, such as inverse range Doppler algorithm [16], segmented modulation [17] and premodulation [18], but they need a reconnaissance system to measure the parameters of the SAR to be jammed at first and are required to provide fast calculation strategies to improve the efficiency of the jamming signal generation. Although the jamming methods proposed in [19] can produce deceptive interference on SAR imaging, and the methods based on 1-bit sampling and timevarying thresholds proposed in [20] can conceal the true target on SAR imaging, multiple false scenes cannot be generated simultaneously. The deception jamming methods proposed in [17], [21], [22], can generate false targets with high fidelity, but they require multiple receivers to work together, which will increase hardware costs and system complexity.…”

Section: Introductionmentioning

confidence: 99%

“…Although this paper [23] mentions that the method can produce multiple false target interference, it needs to strictly control the delay time and sample length. [19]- [28] proposed its own deception jamming techniques for different scenarios of static scenes or moving targets.…”

Section: Introductionmentioning

confidence: 99%

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Multi-Scene Deception Jamming on SAR Imaging With FDA Antenna

et al. 2020

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Most of the existing deception jamming techniques focus on designing effective jamming signals for static targets or scenes. This paper proposes a multi-scene deception jamming against synthetic aperture radar (SAR) imaging with frequency diverse array (FDA) antenna. Different from traditional singleelement and phased-array antennas, FDA antenna employs a small frequency offset across the array elements to produce angle-, range-and even time-dependent transmit beampattern, which brings bright prospect for the application of new jamming techniques against SAR imaging. Such a new method will generate many false targets or multiple deception scenes for the jammed SAR, which helps jam better on the static scene and moving target. Moreover, the location and number of false targets can be manipulated. This paper will illustrate the FDA-based deception jamming against SAR imaging, specially designed waveform and the relationship between the number of false targets or scenes and FDA parameters. The relationship between the location of false targets and the position of jammer will also be described in detail. All proposed methods are validated by extensive simulation results. INDEX TERMS Synthetic aperture radar (SAR), frequency diverse array (FDA), frequency offset, multiscene deception jamming, manipulation.

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Section: B Range Cell Migration Correction and Azimuth Compressionmentioning

confidence: 73%

Section: Introductionmentioning

confidence: 99%

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Multi-Scene Deception Jamming on SAR Imaging With FDA Antenna

et al. 2020

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“…All the pixels in the shadow area can be found using Equation (7). Therefore, the shadow region can be expressed by the following.…”

Section: Characteristics Of the Input Templatementioning

confidence: 99%

“…Synthetic aperture radar (SAR) deception jamming technology is effective in concealing important military facilities and operational equipment [1][2][3], enabling covert military operations [4,5]. The SAR deception jamming technology has the advantage of low power requirements, making it a popular research topic [6][7][8][9]. At present, the schemes for SAR deception jamming at the software level include using a SAR deception jamming template library and electromagnetic scattering models.…”

Section: Introductionmentioning

confidence: 99%

A GAN-Based Augmentation Scheme for SAR Deceptive Jamming Templates with Shadows

Lang,

Li,

Liu

et al. 2023

Remote Sensing

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To realize fast and effective synthetic aperture radar (SAR) deception jamming, a high-quality SAR deception jamming template library can be generated by performing sample augmentation on SAR deception jamming templates. However, the current sample augmentation schemes of SAR deception jamming templates face certain problems. First, the authenticity of the templates is low due to the lack of speckle noise. Second, the generated templates have a low similarity to the target and shadow areas of the input templates. To solve these problems, this study proposed a sample augmentation scheme based on generative adversarial networks, which can generate a high-quality library of SAR deception jamming templates with shadows. The proposed scheme solved the two aforementioned problems from the following aspects. First, the influence of the speckle noise was considered in the network to avoid the problem of reduced authenticity in the generated images. Second, a channel attention mechanism module was used to improve the network’s learning ability of the shadow features, which improved the similarity between the generated template and the shadow area in the input template. Finally, the single generative adversarial network (SinGAN) scheme, which is a generative adversarial network capable of image sample augmentation for a single SAR image, and the proposed scheme were compared regarding the equivalent number of looks and the structural similarity between the target and shadow in the sample augmentation results. The comparison results demonstrated that, compared to the templates generated by the SinGAN scheme, those generated by the proposed scheme had targets and shadow features similar to those of the original image and could incorporate speckle noise characteristics, resulting in a higher authenticity, which helps to achieve fast and effective SAR deception jamming.

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An improved method for deceptive jamming against synthetic aperture radar

Joshi

Kaur

Singh

et al. 2017

Int. J. Microw. Wireless Technol.

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Jamming of synthetic aperture radar (SAR) is more difficult than the conventional radars because of its high processing gain. The defocusing of fake or virtual scatterers is the main problem that any jamming technique needs to tackle. An algorithm based on fractional Fourier transform is proposed for the efficient jamming of SAR. The results show that the performance of proposed algorithm is better than conventional Range Doppler Algorithm.

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Research on deceptive jamming technologies against SAR

Cited by 15 publications

References 1 publication

Multi-Scene Deception Jamming on SAR Imaging With FDA Antenna

Multi-Scene Deception Jamming on SAR Imaging With FDA Antenna

A GAN-Based Augmentation Scheme for SAR Deceptive Jamming Templates with Shadows

An improved method for deceptive jamming against synthetic aperture radar

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