An Active Jamming Method Against ISAR Based on Periodic Binary Phase Modulation

Shi, Qingzhan; Huang, Jingjian; Xie, Tao; Wang, Chao; Yuan, Naichang

doi:10.1109/jsen.2019.2905557

Cited by 22 publications

(4 citation statements)

References 24 publications

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“…At the same time, it receives interesting information such as the distance, radial velocity, angular direction, shape, and bandwidth of the target [ 10 , 11 ]. The radar system can use this information to perform target detection, ranging, tracking, and imaging functions, as well as the process of determining whether the target exists, that is, radar target detection [ 12 , 13 ].…”

Section: Multisensor System Combined With Active Interference Suppres...mentioning

confidence: 99%

Optimal Defect Detection and Sensing System of Railway Tunnel Radar considering Multisensor System Combined with Active Interference Suppression Algorithm

Lei

Zou²,

et al. 2022

Computational Intelligence and Neuroscience

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With the rapid development of science and technology, testing equipment and testing methods are constantly updated. Radar detectors have the advantages of losslessness, high efficiency, high resolution, and high-speed radar image capture. They can accurately locate defects in railway tunnels, respond to hidden dangers in time, and provide strong technical support for transportation. This paper proposes to optimize the defect detection of railway tunnel radar through the combination of multisensor technology and active interference suppression algorithm and designs the corresponding sensor system according to the content. This article analyzes several factors that affect the radar detection effect and makes a detailed summary from the detection environment and other aspects. At the same time, it uses the multisensor system combined with active interference suppression algorithm to design a railway tunnel detection simulation experiment. Experimental results show that the use of multisensors combined with active interference suppression algorithm to optimize radar detection can effectively improve the accuracy of railway tunnel defect detection. Through the analysis of the results of tunnel defect detection, the detection accuracy of this paper has reached 98.8%, which can provide an effective reference for the detection of railway tunnels.

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Section: Multisensor System Combined With Active Interference Suppres...mentioning

confidence: 99%

Optimal Defect Detection and Sensing System of Railway Tunnel Radar considering Multisensor System Combined with Active Interference Suppression Algorithm

Lei

Zou²,

et al. 2022

Computational Intelligence and Neuroscience

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show abstract

“…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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“…Both of them usually adopt Digital Radio Frequency Memory (DRFM) and Digital Image Synthesizer (DIS) [9] technologies to achieve the purpose of coherence with the ISAR and generation in real time. Based on the scatter-wave jamming model, the sub-Nyquist jamming method [10,11] and the binary phase modulation method [12,13] are proposed. However, the scatter-wave method is very hard to apply because the receiving antenna of the jammer should point to the ISAR and its transmitting antenna must head to the real target to use the actual target as a template.…”

Section: Introductionmentioning

confidence: 99%

A real‐time fine echo generation method of extended false target with radially high‐speed moving

Wei

Zhang

Chen

2022

IET Radar Sonar & Navi

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The false‐target echo generation to Inverse Synthetic Aperture Radar (ISAR) is significant in jamming the enemy ISAR and promoting ISAR development. Generally, it requires false‐target echo coherent with the radar, real time and fine. However, conventional methods, such as digital image synthesizer (DIS), cannot meet those requirements. Moreover, existing methods do not consider the target's radial moving. To meet those demands, we propose an improved method in this study. We equivalently model echo formation as the synthesizer of two independent parts: (1) echo of remote target with radial moving and (2) echo of nearby extended target. In part one, accuracy is improved by utilising the Inner Pulse Motion (IPM) model and complexity is simplified by deducing it as a frequency offset modulation. In part two, the fine extended target echo is constructed by using convolution filtering whose resources consumption can be greatly reduced by separating it into an offline stage and a real‐time stage. Our method is verified by algorithm simulations and actual experiments. The results indicate that it can build the fine false‐target echo in real‐time and can adapt to the target's radial velocity, different resolution and size. Compared with the conventional DIS method, our method reduces the computational complexity significantly and has more comprehensive functions.

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An Active Jamming Method Against ISAR Based on Periodic Binary Phase Modulation

Cited by 22 publications

References 24 publications

Optimal Defect Detection and Sensing System of Railway Tunnel Radar considering Multisensor System Combined with Active Interference Suppression Algorithm

Optimal Defect Detection and Sensing System of Railway Tunnel Radar considering Multisensor System Combined with Active Interference Suppression Algorithm

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

A real‐time fine echo generation method of extended false target with radially high‐speed moving

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