Results 21 to 30 of about 77,328 (260)

Online Sequential Extreme Learning Machine-Based Active Interference Activity Prediction for Cognitive Radar

open access: yesRemote Sensing, 2022
For anti-active-interference-oriented cognitive radar systems, the mismatch between the acquired and actual interference information may result in serious degradation of cognitive anti-active-interference performance. To yield more effective knowledge of
Shanshan Wang   +3 more
doaj   +1 more source

Neural Network Component of Modern Information System on Mobile Platforms: LPI Cognitive Radar System

open access: yesКібернетика та комп'ютерні технології, 2023
The problem of building modern systems for collecting, processing and presenting information for moving platforms, characterized by the presence of a neural network with deep learning, sensors with preprocessing, systems processing and presenting ...
Mykola Kosovets, Lilia Tovstenko
doaj   +1 more source

The Waggle Dance as an Intended Flight: A Cognitive Perspective [PDF]

open access: yes, 2019
The notion of the waggle dance simulating a flight towards a goal in a walking pattern has been proposed in the context of evolutionary considerations. Behavioral components, like its arousing effect on the social community, the attention of hive mates ...
Menzel, Randolf
core   +1 more source

Cognitive node selection and assignment algorithms for weighted cooperative sensing in radar systems [PDF]

open access: yes, 2009
For the radar spectrum to be shared efficiently a good sensing capability within a secondary cognitive communication system is required. In this paper, the swept radar's rotation mechanism is explored to improve the sensing performance.
Doufexi, A   +3 more
core   +2 more sources

How Can a Cognitive Radar Mask its Cognition?

open access: yesICASSP 2022 - 2022 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2022
We study how a cognitive radar can mask (hide) its cognitive ability from an adversarial jamming device. Specifically, if the radar optimally adapts its waveform based on adversarial target maneuvers (probes), how should the radar choose its waveform parameters (response) so that its utility function cannot be recovered by the adversary.
Kunal Pattanayak   +2 more
openaire   +2 more sources

Hybrid Cognition for Target Tracking in Cognitive Radar Networks

open access: yesIEEE Transactions on Radar Systems, 2023
This work investigates online learning techniques for a cognitive radar network utilizing feedback from a central coordinator. The available spectrum is divided into channels, and each radar node must transmit in one channel per time step. The network attempts to optimize radar tracking accuracy by learning the optimal channel selection for spectrum ...
William W. Howard, R. Michael Buehrer
openaire   +2 more sources

Cognitive passive radar system: software defined radio and deep learning approach

open access: yesThe Journal of Engineering, 2019
Cognitive passive radar (CPR) system is amenable to electromagnetic environment cooperating and optimal strategy making tasks on account of illumination source availability and waveform evaluation. In fact, intelligence will provide performance gain from
Qing Wang   +4 more
doaj   +1 more source

Cooperative Radar and Communications Signaling: The Estimation and Information Theory Odd Couple [PDF]

open access: yes, 2014
We investigate cooperative radar and communications signaling. While each system typically considers the other system a source of interference, by considering the radar and communications operations to be a single joint system, the performance of both ...
Bliss, Daniel W.
core   +1 more source

EEG-based cognitive control behaviour assessment: an ecological study with professional air traffic controllers [PDF]

open access: yes, 2017
Several models defining different types of cognitive human behaviour are available. For this work, we have selected the Skill, Rule and Knowledge (SRK) model proposed by Rasmussen in 1983. This model is currently broadly used in safety critical domains,
Aricò, Pietro   +11 more
core   +1 more source

Shifting perspectives: holography and the emergence of technical communities [PDF]

open access: yes, 2005
Holography, the technology of three-dimensional imaging, has repeatedly been reconceptualised by new communities. Conceived in 1947 as a means of improving electron microscopy, holography was revitalized in the early 1960s by engineer-scientists at ...
Johnston, S.F.
core   +2 more sources

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