Results 31 to 40 of about 170 (99)

Research on an Intra-Pulse Orthogonal Waveform and Methods Resisting Interrupted-Sampling Repeater Jamming within the Same Frequency Band

open access: yesRemote Sensing, 2023
Interrupted-sampling repeater jamming (ISRJ) is a kind of intra-pulse coherent deception jamming that can generate false target peaks in the range profile and interfere with the detection and tracking of real targets.
Huahua Dai   +5 more
doaj   +2 more sources

Time-frequency Analysis Techniques for Recognition and Suppression of Interrupted Sampling Repeater Jamming

open access: yesLeida xuebao, 2019
Through partial intercepting and multiple forwarding of a radar transmitting signal, Digital Radio Frequency Memory (DRFM)-based Interrupted Sampling Repeater Jamming (ISRJ) possesses advantages of small size, light weight, and flexibility.
ZHOU Chao, LIU Quanhua, HU Cheng
doaj   +2 more sources

Interrupted-Sampling Repeater Jamming Countermeasure Based on Intrapulse Frequency–Coded Joint Frequency Modulation Slope Agile Waveform

open access: yesRemote Sensing
Interrupted-sampling repeater jamming (ISRJ) is widely used in the field of electronic countermeasures, and can severely affect radar detection. Therefore, the problem of ISRJ suppression is a compelling task.
Xiaoge Wang   +6 more
doaj   +2 more sources

A Method for Interrupted-Sampling Repeater Jamming Identification and Suppression Based on Differential Features

open access: yesLeida xuebao, 2023
The interrupted-sampling repeater jammer can sample, store, process and transmit part of the radar transmitter signal multiple times and the fake targets will form on the radar receiver.
Jiyu GAI   +5 more
doaj   +1 more source

Anti‐interrupted sampling repeater jamming method for random pulse repetition interval and intra‐pulse frequency agile radar

open access: yesIET Radar, Sonar &Navigation, Volume 17, Issue 12, Page 1796-1811, December 2023., 2023
This paper proposes a random pulse repetition interval and intra‐pulse frequency agile radar waveform and captures the range‐dimensional centroid feature of the echo. Accordingly, a jamming identification method based on the scale constrained Gaussian mixture model (SCGMM) and an entity radar target energy recovery algorithm based on the neighbourhood ...
Tai Guo   +3 more
wiley   +1 more source

Radar active deception jamming recognition based on Siamese squeeze wavelet attention network

open access: yesIET Radar, Sonar &Navigation, Volume 17, Issue 12, Page 1886-1898, December 2023., 2023
In actual complex battlefields, the abundant deceptive jamming signals are extremely difficult to obtain and the deceptive jamming signals leveraged by the adversarial jammers are often significantly influenced by noise. To address these challenges a Siamese squeeze wavelet attention network (SSWAN) for radar active deception jamming recognition method
Zhenhua Wu   +4 more
wiley   +1 more source

Light‐weight deep learning method for active jamming recognition based on improved MobileViT

open access: yesIET Radar, Sonar &Navigation, Volume 17, Issue 8, Page 1299-1311, August 2023., 2023
In this study, we propose a lightweight neural network model called MobileViT_CA, an improved version of MobileViT, for jamming recognition in small sample scenarios. The algorithm aims at the problems of large model sizes and low recognition accuracy in small sample sizes.
Wenxu Zou, Kai Xie, Jinjian Lin
wiley   +1 more source

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

open access: yesIET Radar, Sonar &Navigation, Volume 17, Issue 7, Page 1129-1141, July 2023., 2023
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 the coded phase modulation in both fast and slow time domain.
Qihua Wu   +5 more
wiley   +1 more source

Consensus based target tracking against deception jamming in distributed radar networks

open access: yesIET Radar, Sonar &Navigation, Volume 17, Issue 4, Page 683-700, April 2023., 2023
In this paper, a data‐level anti‐deception jamming target tracking algorithm is proposed for distributed radar network by exploiting the spatial position differences between physical and false targets. Through numerical simulations, the effectiveness of the algorithm is verified, where both the collaborative and non‐collaborative false targets can be ...
Ye Yang   +4 more
wiley   +1 more source

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

open access: yes, 2015
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 ...
Pan, Y. J., Tai, N., Yuan, N. C.
core   +2 more sources

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