Results 21 to 30 of about 20,008 (265)

Active Deception Jamming Recognition Method in Multimodal Radar Based on Small Samples

open access: yesLeida xuebao, 2023
Jamming recognition is a prerequisite for radar antijamming and actual radar deception jamming recognition; however, there is a problem of insufficient samples.
Shunsheng ZHANG   +4 more
doaj   +1 more source

Diff-SwinT: An Integrated Framework of Diffusion Model and Swin Transformer for Radar Jamming Recognition

open access: yesFuture Internet, 2023
With the increasing complexity of radar jamming threats, accurate and automatic jamming recognition is essential but remains challenging. Conventional algorithms often suffer from sharply decreased recognition accuracy under low jamming-to-noise ratios ...
Minghui Sha   +4 more
doaj   +1 more source

Intelligent Recognition of Chirp Radar Deceptive Jamming Based on Multi-Pulse Information Fusion

open access: yesSensors, 2021
The perception of jamming types is very important for protecting our radar in complex electromagnetic environments. Radar active deceptive jamming based on digital radio frequency memory (DRFM) has a high coherence with the target echo, which confuses ...
Xuegang Lan   +4 more
doaj   +1 more source

Security against jamming and noise exclusion in imaging [PDF]

open access: yes, 2016
We describe a protocol by which an imaging system could be protected against jamming by a malevolent party. Our protocol not only allows recognition of the jamming, but also allows for the recovery of the true image from the jammed one.
Jeffers, John, Roga, Wojciech
core   +2 more sources

High Speed Dim Air Target Detection Using Airborne Radar under Clutter and Jamming Effects [PDF]

open access: yes, 2015
The challenging potential problems associated with using airborne radar in detection of high Speed Maneuvering Dim Target (HSMDT) are the highly noise, jamming and clutter effects.
Almslmany, A. E.   +2 more
core   +2 more sources

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

open access: yesIET Radar, Sonar & Navigation, 2023
Active deception jamming recognition has gained significant attention as a crucial aspect of modern electronic warfare, and a large quantity of jamming recognition methods based on either artificial or deep learning methods have been proposed to date. In
Zhenhua Wu   +4 more
doaj   +1 more source

Deciphering the brain's codes [PDF]

open access: yes, 1991
The two sensory systems discussed use similar algorithms for the synthesis of the neuronal selectivity for the stimulus that releases a particular behavior, although the neural circuits, the brain sites involved, and even the species are different.
Konishi, Masakazu
core   +1 more source

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   +1 more source

Jamming Efficiency Analysis Based on the Range Profile of Target With Chaff

open access: yesIEEE Access, 2021
Chaff cloud is widely used in target covering. In this paper, a jamming performance estimation strategy is presented for the elliptical and cubic chaff clouds.
Yanchun Zuo   +3 more
doaj   +1 more source

Adaptive target and jamming recognition for the pulse doppler radar fuze based on a time-frequency joint feature and an online-updated naive bayesian classifier with minimal risk

open access: yesDefence Technology, 2022
This paper considers the problem of target and jamming recognition for the pulse Doppler radar fuze (PDRF). To solve the problem, the matched filter outputs of the PDRF under the action of target and jamming are analyzed.
Jian Dai   +4 more
doaj   +1 more source

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