Results 31 to 40 of about 76,717 (238)

Multi-Domain Fusion Network for Active Jamming Recognition in Cognitive Radar

open access: yesRemote Sensing
Precise identification of active jamming in complex electromagnetic environments remains critically challenging for cognitive radar systems. Current methods often exhibit limitations in insufficient feature extraction and underutilization of jamming ...
Xiaoying Chen, Ying Liu, Cheng Wang
doaj   +1 more source

Cognitive Sub-Nyquist Hardware Prototype of a Collocated MIMO Radar

open access: yes, 2016
We present the design and hardware implementation of a radar prototype that demonstrates the principle of a sub-Nyquist collocated multiple-input multiple-output (MIMO) radar.
Cohen, David   +8 more
core   +1 more source

Goal Orientation and Ability: Interactive Effects on Self-Efficacy, Performance, and Knowledge [PDF]

open access: yes, 2002
This study examined the direct relationship of goal orientation – and the interaction of goal orientation and cognitive ability -- with self-efficacy, performance, and knowledge in a learning context.
Bell, Bradford S., Kozlowski, Steve W.J.
core   +3 more sources

Science & technology trends in cognitive radar concept

open access: yesСистеми обробки інформації, 2021
Currently, human operators provide cognition in a radar system. However, advances in the “digitization” of radar front-ends, including digital arbitrary waveform generators (AWG) and advanced high performance embedded computing (HPEC) make it possible to
А.С. Дудуш   +3 more
doaj   +1 more source

Adaptive channel selection for DOA estimation in MIMO radar

open access: yes, 2017
We present adaptive strategies for antenna selection for Direction of Arrival (DoA) estimation of a far-field source using TDM MIMO radar with linear arrays. Our treatment is formulated within a general adaptive sensing framework that uses one-step ahead
Brüggenwirth, Stefan   +3 more
core   +1 more source

Spectrum sharing and cognitive radio [PDF]

open access: yes, 2009
Spectrum sharing has been the subject of a 3 year research programme organised by the UK's Virtual Centre of Excellence in Mobile and Personal Communications.
Beach, MA   +5 more
core   +2 more sources

Transmit Energy Efficiency of Two Cognitive Radar Platforms for Target Identification

open access: yesAerospace, 2015
Cognitive radar (CRr) is a recent radar paradigm that can potentially help drive aerospace innovation forward. Two specific platforms of cognitive radar used for target identification are discussed.
Ric Romero, Emmanouil Mourtzakis
doaj   +1 more source

Preserving a combat commander’s moral agency: The Vincennes Incident as a Chinese Room [PDF]

open access: yes, 2016
We argue that a command and control system can undermine a commander’s moral agency if it causes him/her to process information in a purely syntactic manner, or if it precludes him/her from ascertaining the truth of that information. Our case is based on
Hew, Patrick Chisan
core   +1 more source

Recent Advances and Perspectives on Field‐Effect Transistors for Artificial Visual Neuromorphic Systems

open access: yesAdvanced Science, EarlyView.
This review presents a comprehensive overview of FET‐based visual neuromorphic systems, covering their semiconductor materials, core device architectures, and operating mechanisms. It further reviews their implementation in emulating biological visual functions, addresses current technological challenges, and outlines future development directions. The
Liu Yaqian   +11 more
wiley   +1 more source

Performance analysis of one-step prediction-based cognitive jamming in jammer-radar countermeasure model

open access: yesThe Journal of Engineering, 2019
Strong adaptive radar, such as cognitive radar (CNR), can perform various missions while ensuring its own security in electronic warfare, via detecting environments and changing the radar parameters in real time.
Lu Gao   +4 more
doaj   +1 more source

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