Results 21 to 30 of about 4,600 (236)
Applied Sciences, 2022 In this work, we present a method for designing a dielectric lens with a reduced height that is easily printed with one-take 3D printing. For the first time, we prove that the configuration of a printout made of resin material can be modified for ...
Wonkyo Kim +4 more
doaj +1 more source
PUGTIFs: Passively User-Generated Thermal Invariant Features
IEEE Access, 2019 Feature detection is a vital aspect of computer vision applications, but adverse environments, distance and illumination can affect the quality and repeatability of features or even prevent their identification. Invariance to these constraints would make
Edward Jackson, Lounis Chermak
doaj +1 more source
Antifragile Electronic Warfare
CoRR, 2014 This letter introduces the concept of antifragile electronic warfare (EW), which we define as the ability to allow a communications link to improve performance due to the presence of a jammer. This concept should not be confused with jamming countermeasures (a.k.a. anti-jamming or electronic protection).
openaire +2 more sources
Development of a Remote-Controlled Electrical Interference Vehicle with a Magnetron
Sensors, 2020 This paper describes the design and construction of a remotely controlled mobile interference device designed primarily for interference (jamming) and immunity testing of wireless sensors operating in the 2.4 GHz band (Wi-Fi).
Miroslav Popela +3 more
doaj +1 more source
Statistical analysis of in‐flight drone signatures
IET Radar, Sonar & Navigation, 2022 Drone‐monitoring radars typically integrate many pulses in order to improve signal to noise ratio and enable high detection performance. Over the course of this coherent processing interval (CPI), many components of the drone signature change and the ...
John Markow +2 more
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IET Networks, EarlyView., 2022 Abstract 3D scanning is rapidly becoming a key maintenance tool. Aerospace was a pioneer in adopting 3D scanning technology because aircraft manufacture and maintenance require precision. Monitoring deterioration, removing components for maintenance, and verifying covert operations are not practical or helpful without technology.
T. Nanthakumaran Thulasy +4 more
wiley +1 more source
Applied Sciences, 2020 In an electronic warfare environment, important equipment or facilities of the friendlies are placed in protective facilities to protect against external Electronic Attacks (EA).
Jaejoong Lee +4 more
doaj +1 more source
Sensors, 2021 Millimeter-wave (W-band) radar measurements were taken for two maritime targets instrumented with attitude and heading reference systems (AHRSs) in a littoral environment with the aim of developing a multiaspect classifier.
Tomasz Jasinski +2 more
doaj +1 more source
Receptor‐Free Identification of Toxic Gases Enabled by Hygroscopic Aqueous Salt Films
Advanced Functional Materials, EarlyView.Water as a gas sensor coating sounds impossible—until it stops evaporating. Here, hygroscopic salt solutions (LiCl, LiBr, H3PO4) form non‐drying aqueous films on CNT chemiresistors under ambient air. Gases partition into these liquid layers, sometimes transforming into water, and generate salt‐specific resistance fingerprints across a four‐channel ...
Seongwoo Lee +5 more
wiley +1 more source
Mutual Interference Avoidance of FMCW Automotive Radars Using AI
Journal of Engineering Science and Military TechnologiesRecent years witnessed a rapid growth of FMCW radar applications because of their desirable characteristics such as small size, high range resolution, low peak power requirements, and cost effectiveness.
mohamed ammar +2 more
doaj +1 more source