Results 21 to 30 of about 8,015 (302)
Radar Anti-Jamming Decision-Making Method Based on DDPG-MADDPG Algorithm
Remote Sensing, 2023 In the face of smart and varied jamming, intelligent radar anti-jamming technologies are urgently needed. Due to the variety of radar electronic counter-countermeasures (ECCMs), it is necessary to efficiently optimize ECCMs in the high-dimensional ...
Jingjing Wei +3 more
doaj +1 more source
Survey on cognitive anti‐jamming communications [PDF]
IET Communications, 2020 In this study, the authors review various jamming and anti‐jamming strategies in the context of cognitive radios (CRs). The study explores different jamming models and classifies them according to their functionality. Furthermore, a study of jamming detection techniques is provided to enable a CR to identify different jamming signals.
Mohamed A. Aref +2 more
openaire +2 more sources
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 +5 more
doaj +1 more source
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
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 +4 more
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 +3 more
doaj +1 more source
Researchment of Mainlobe Anti-jamming Algorithms
Journal of Physics: Conference Series, 2020 Abstract Main lobe interferences usually cause the distortion and peak offset of main lobe and the heighten of side lobe level in adaptive beamformers. The block matrix algorithm utilized the direction vector which was determined by both the antenna arrays and the direction of interference to eliminate the main lobe interference.
Zhongmin Pei +4 more
openaire +2 more sources
Jamming Modulation: An Active Anti-Jamming Scheme
IEEE Transactions on Wireless Communications, 2023 Providing quality communications under adversarial electronic attacks, e.g., broadband jamming attacks, is a challenging task. Unlike state-of-the-art approaches which treat jamming signals as destructive interference, this paper presents a novel active anti-jamming (AAJ) scheme for a jammed channel to enhance the communication quality between a ...
Jianhui Ma +5 more
openaire +2 more sources
Romiplostim use in pregnant women with immune thrombocytopenia
American Journal of Hematology, Volume 98, Issue 1, Page 31-40, January 2023., 2023 Abstract Treatment for immune thrombocytopenia (ITP) in pregnancy is hampered by the lack of fetal safety evidence of maternally‐administered medications. The Pregnancy Surveillance Program (PSP) collected patient information from 2017–2020 for pregnancy, birth outcomes, and adverse events (AEs) for 186 women exposed to romiplostim from 20 days before ...
James B. Bussel +7 more
wiley +1 more source
Retroactive Anti-Jamming for MISO Broadcast Channels [PDF]
, 2013 Jamming attacks can significantly impact the performance of wireless communication systems. In addition to reducing the capacity, such attacks may lead to insurmountable overhead in terms of re-transmissions and increased power consumption. In this paper,
Amuru, SaiDhiraj +3 more
core +2 more sources