Results 41 to 50 of about 42,786 (277)
An Anti-2D Deceptive Jamming Method for Bistatic SAR Based on Jammer Localization
IEEE Journal of Selected Topics in Applied Earth Observations and Remote SensingSynthetic aperture radar (SAR) is an essential instrument for Earth observation but is vulnerable to intentional electromagnetic jamming during imaging. Two-dimensional (2-D) deceptive jamming can introduce highly realistic false targets into SAR images,
Jiale Zhang +5 more
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IEEE Access, 2019 Deceptive jamming may not only induce a large amount of false alarms and deteriorate the target detection performance, but also lead to degraded space-time adaptive processing (STAP) performance in an airborne radar.
Cai Wen +5 more
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The Anatomical Record, EarlyView.Abstract Differences in skull and tooth morphology, stomach contents, and estimated bite force between medium‐to‐large sized (≥100 kg) predatory theropod dinosaurs have long been suspected to correlate with differences in their diets and dietary guilds (e.g., hypercarnivory, piscivory).
Cassius Morrison +9 more
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Journal of the Association for Information Science and Technology, EarlyView.Abstract The integrity of scholarly communication depends critically on the accuracy and verifiability of cited references. Citations enable readers to trace prior work, assess evidence, and situate new contributions within the existing literature. However, concerns have emerged regarding the presence of references in published papers that cannot be ...
Chengcheng Han +3 more
wiley +1 more source
Countering self‐protection smeared spectrum jamming against chirp radars
IET Radar, Sonar & Navigation, 2021 Chirp radars are vulnerable to various types of deceptive jamming for example, smeared spectrum (SMSP) jamming that generates multiple false targets, which lead and lag the true target.
Samer Baher Safa Hanbali
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Deception Jamming for Squint SAR Based on Multiple Receivers
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2015 A deception jamming method for synthetic aperture radar (SAR) based on multiple receivers is proposed. This method deals with the parameters of hostile SAR as a whole for deception jamming. By measuring the range differences between different receivers, higher accuracy can be achieved than detecting each of the parameters directly.
Bo Zhao 0006 +2 more
openaire +1 more source
Sensors, 2020 A computationally efficient target parameter estimation algorithm for frequency agile radar (FAR) under jamming environment is developed. First, the barrage noise jamming and the deceptive jamming are suppressed by using adaptive beamforming and ...
Yang Zhao +3 more
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One-bit splitting deceptive jamming against SAR
Defence Technology, 2022 One-bit quantization is a promising technique due to its performance retention and complexity reduction in a deceptive jammer against synthetic aperture radar (SAR).
Bo Zhao +4 more
doaj +1 more source
British Journal of Clinical Pharmacology, EarlyView.Aim Intradermal application of lipopolysaccharide (LPS), a Toll‐like receptor 4 agonist, induces a local inflammatory response and is used as a human challenge model to evaluate the pharmacodynamics of investigational medicinal products. While currently applied in a single, parallel‐group setting, alternative within‐subject designs involving repeated ...
Alexandra A. J. Sillé +12 more
wiley +1 more source
Land birds on atolls: diversity, origin, and function
Biological Reviews, EarlyView.ABSTRACT Oceanic islands are global hotspots of avian biodiversity and endemism. Their isolation and distinct environmental conditions have uniquely shaped the evolutionary trajectories of island birds, while, in turn, land bird communities have become critical providers of ecological functions to island ecosystems.
Sebastian Steibl +6 more
wiley +1 more source