Results 111 to 120 of about 2,337,623 (302)
Configurable Pseudo Noise Radar Imaging System Enabling Synchronous MIMO Channel Extension. [PDF]
Sensors (Basel), 2023 Bräunlich N +3 more
europepmc +1 more source
Velocity Dealiased Spectral Estimators of Range Migrating Targets using a Single Low-PRF Wideband Waveform [PDF]
, 2013 Wideband radars are promising systems that may provide numerous advantages, like simultaneous detection of slow and fast moving targets, high range-velocity resolution classification, and electronic countermeasures.
Bidon, Stéphanie +3 more
core +1 more source
Advanced Science, EarlyView.This study reports lightweight, elastic ceramic fabrics with broadband electromagnetic absorption (EAB = 9.8 GHz) and high‐temperature thermal insulation, enabled by precise microstructural control during ultrafast high‐temperature sintering (UHS), which induces the precipitation of defect‐rich t‐ZrO2 nanograins and turbostratic C nanoclusters.
Jiahao Yang +9 more
wiley +1 more source
Drone-Based 3D Synthetic Aperture Radar Imaging with Trajectory Optimization. [PDF]
Sensors (Basel), 2022 Drozdowicz J, Samczynski P.
europepmc +1 more source
Advanced Science, EarlyView.This study develops a multi‐dimensional vision Transformer‐based model, GAVR, to accurately distinguish gastric cancer T4a/b stages preoperatively. Validated across multi‐center cohorts, it achieves excellent performance and significantly improves radiologists’ diagnostic accuracy, offering a promising tool for clinical decision‐making.
Guoliang Zheng +20 more
wiley +1 more source
FPGA Implementation of the Chirp-Scaling Algorithm for Real-Time Synthetic Aperture Radar Imaging. [PDF]
Sensors (Basel), 2023 Lee J +5 more
europepmc +1 more source
Efficient Adsorption‐Based Direct Air Capture Via Triply Periodic Minimal Surface Architectures
Advanced Science, EarlyView.Architected triply periodic minimal surface (TPMS) contactors reshape direct air capture by replacing straight‐channel diffusion limits with convection‐enhanced CO2 transport. Chaotic advection thins boundary layers and exposes fast adsorption sites, enabling 70%–75% more fast sites, 114% higher productivity, and 51.8% lower energy consumption than ...
Qingyang Shao +6 more
wiley +1 more source
Remote SensingOperating mode identification is an important prerequisite for precise deceptive jamming technology against synthetic aperture radar (SAR). In order to solve the problems of traditional spaceborne SAR operating mode identification, such as low ...
Runfa Ma +5 more
doaj +1 more source
Metasurfaced Reverberation Chamber
Scientific Reports, 2018 The concept of metasurfaced reverberation chamber (RC) is introduced in this paper. It is shown that by coating the chamber wall with a rotating 1-bit random coding metasurface, it is possible to enlarge the test zone of the RC while maintaining the ...
Hengyi Sun +7 more
doaj +1 more source
Autofocusing of Maneuvering Targets in Terahertz Inverse Synthetic Aperture Radar Imaging Based on Damped Newton Method. [PDF]
Sensors (Basel), 2022 Wang H, Yang Q, Wang H, Deng B.
europepmc +1 more source