Results 11 to 20 of about 2,823 (249)

A Novel Radar Mainlobe Anti-Jamming Method via Space-Time Coding and Blind Source Separation [PDF]

Sensors
This paper proposes a radar mainlobe anti-jamming method based on Space-Time Coding (STC) and Blind Source Separation (BSS). Addressing the performance degradation issue of traditional BSS methods under low Signal-to-Noise Ratio (SNR) and insufficient ...
Xinyu Ge, Yu Wang, Yangcheng Zheng, Guodong Jin, Daiyin Zhu   +4 more
doaj   +2 more sources

On the Performance of Deep Reinforcement Learning-Based Anti-Jamming Method Confronting Intelligent Jammer

Applied Sciences, 2019
With the development of access technologies and artificial intelligence, a deep reinforcement learning (DRL) algorithm is proposed into channel accessing and anti-jamming.
Yangyang Li, Ximing Wang, Dianxiong Liu, Qiuju Guo, Xin Liu, Jie Zhang, Yitao Xu   +6 more
doaj   +3 more sources

Heterogeneous Spectral-Spatial Network With 3D Attention and MLP for Hyperspectral Image Classification Using Limited Training Samples

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023
Methods based on convolutional neural networks (CNNs) have become a vital offshoot for hyperspectral image (HSI) classification. In recent years, the 3-D CNN (3-DCNN) has become dominant due to its excellent capability of extracting features.
Yaxiu Sun, Minhui Wang, Chen Wei, Yu Zhong, Jianhong Xiang   +4 more
doaj   +1 more source

A cross‐layer anti‐jamming method in satellite Internet

IET Communications, 2023
In view of the diverse jamming environment, the single‐level anti‐jamming method faces some challenges such as poor timeliness, high cost and poor effect.
Peijie Yan, Feihuang Chu, Luliang Jia, Nan Qi   +3 more
doaj   +1 more source

Statistical Analysis of Bistatic Radar Ground Clutter for Different German Rural Environments

Sensors, 2020
This article presents the statistical analysis of bistatic radar rural ground clutter for different terrain types under low grazing angles. Compared to most state-of-the-art analysis, we present country-specific clutter analysis for subgroups of rural ...
Michael Kohler, Daniel W. O’Hagan, Matthias Weiss, David Wegner, Josef Worms, Oliver Bringmann   +5 more
doaj   +1 more source

A Radar Anti-jamming Method under Multi-jamming Scenarios Based on Deep Reinforcement Learning in Complex Domains

Leida xuebao, 2023
In modern electronic warfare, the jamming environment of radar is more complex than ever. The airborne jammer adapts its jamming method based on diverse raid missions and stages.
Feng XIE, Huanyu LIU, Xikun HU, Ping ZHONG, Junbao LI   +4 more
doaj   +1 more source

Radar Anti-Jamming Countermeasures Intelligent Decision-Making: A Partially Observable Markov Decision Process Approach

Aerospace, 2023
Current electronic warfare jammers and radar countermeasures are characterized by dynamism and uncertainty. This paper focuses on a decision-making framework of radar anti-jamming countermeasures.
Huaixi Xing, Qinghua Xing, Kun Wang
doaj   +1 more source

A Novel Anti-Jamming Decision-Making Algorithm Based on Knowledge Graph Technology

Applied Sciences, 2022
Wireless communications are increasingly vulnerable to malicious jamming attacks due to the inherent openness and broadcast nature. In this regard, a novel anti-jamming scheme based on knowledge graph is proposed in this paper, where the knowledge graph ...
Yingtao Niu, Xijin Feng, Shaoqin Kou, Peng Xiang   +3 more
doaj   +1 more source

Communication Anti-jamming Technique Based on Enhanced Oblique Projection Operator in Polarization Domain [PDF]

Jisuanji gongcheng, 2018
Aiming at the anti-jamming and interference suppression in wireless communication,this paper proposes a communication anti-jamming method in polarization domain.It uses oblique projection polarization filter in the signal polarization domain to overcome ...
ZHANG Xiaokai,ZHANG Bangning,GUO Daoxing,WANG Yaowen
doaj   +1 more source

Anti-jamming timing channels for wireless networks [PDF]

Proceedings of the first ACM conference on Wireless network security, 2008
Wireless communication is susceptible to radio interference, which prevents the reception of communications. Although evasion strategies have been proposed, such strategies are costly or ineffective against broadband jammers. In this paper, we explore an alternative to evasion strategies that involves the establishment of a timing channel that exists ...
Xu, Wenyuan, Trappe, Wade, Zhang, Yanyong   +2 more
openaire   +2 more sources