Results 41 to 50 of about 49,509 (50)

Design and Development of Student Attention System using Face Recognition Based on MTCNN and FaceNet

open access: yesJurnal Jaringan Telekomunikasi, 2023
Employees use their level of attendance or absence to demonstrate their presence at work or absence from it in an agency. This absence is connected to how discipline is applied, which is decided by each organization or institution.
Moch. Maulana Andhika Candra   +2 more
doaj  

Метод автоматичного визначення параметрів радіосигналів сформованих за стандартом LoRa

open access: yesVìsnik Nacìonalʹnogo Tehnìčnogo Unìversitetu Ukraïni Kììvsʹkij Polìtehnìčnij Ìnstitut: Serìâ Radìotehnìka, Radìoaparatobuduvannâ
Радіосигнали сформовані за стандартом LoRa (далі – радіосигнали LoRa) широко використовуються в телекомунікаційних системах як цивільного, так і військового призначення, що обумовлено насамперед їх високою перешкодостійкістю.
O. A. Nahorniuk
doaj  

Energy Autonomous Dual-Band Antenna System for RFID-Based Real-Time Battery Level Monitoring

open access: yesIEEE Open Journal of Antennas and Propagation
This paper presents an energy-autonomous antenna system that combines energy harvesting (EH) with radio frequency identification (RFID) communication to measure the battery charge level in real time.
Braden P. Smyth   +5 more
doaj   +1 more source

Pulse‐level work state recognition of multifunction radar based on MC‐RSG

open access: yesIET Radar, Sonar & Navigation
Accurate work state recognition of multifunction radar (MFR) is crucial in electronic warfare, as it helps understand the enemy's intention and evaluate potential threats.
Zijun Qin   +3 more
doaj   +1 more source

Defeating angle tracking: A comprehensive analysis of scan rate modulation jamming against sequential lobing radars

open access: yesIET Radar, Sonar & Navigation
The authors analyse the sequential lobing radar (SLR) resistance against the scan rate modulation (SRM) jamming technique. Unlike previous studies, the authors analyse SLRs with sinc antenna patterns, enabling investigation of the sidelobe region's ...
Mustafa Kucuk   +3 more
doaj   +1 more source

Main lobe deceptive jamming suppression based on blind source separation and energy detection for monopulse radar

open access: yesIET Radar, Sonar & Navigation
Main lobe deceptive jamming always causes the serious degradation of signal detection ability and angle measurement precision of monopulse radar. In recent years, the Blind Source Separation (BSS) method has been adopted to suppress the main lobe jamming.
Zhenhua Liu   +4 more
doaj   +1 more source

Mainlobe and sidelobe jamming suppression method based on distributed array radar with eigen‐projection matrix processing and null constraints

open access: yesIET Radar, Sonar & Navigation
The jamming in electronic warfare environment significantly degrades the performance of the radar system, especially the mainlobe jamming. The distributed array radar can suppress the mainlobe jamming by increasing the array aperture with auxiliary ...
Bowen Han   +5 more
doaj   +1 more source

Deception mechanisms of FDA‒AWACS against passive monopulse angle measurements

open access: yesIET Radar, Sonar & Navigation
Airborne warning and control systems (AWACS) serve as critical command and control centres in air combat operations, making them prime targets for strategic attacks.
Bo Wang   +4 more
doaj   +1 more source

Multi‐function radar work mode recognition based on residual shrinkage reconstruction recurrent neural network

open access: yesIET Radar, Sonar & Navigation
In modern electronic warfare, multi‐function radar work mode recognition is increasingly crucial. However, the challenges posed by complex electromagnetic environments, such as lost pulses, spurious pulses, and measurement errors, along with the reliance
Lihong Wang, Kai Xie
doaj   +1 more source

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