Results 71 to 80 of about 2,161,885 (199)
Remote SensingWith the increasing use of the strategy and group target attack method in the modern battlefield, multi-target inverse synthetic aperture radar (ISAR) imaging simultaneously with high efficiency draws more and more attention, which gives a promising ...
Xuebo Zou +3 more
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LPI Radar Waveform Recognition Based on Multi-Branch MWC Compressed Sampling Receiver
IEEE Access, 2018 In this paper, a new wideband digital receiver based on the modulated wideband converter compressed sampling (CS) system is proposed to replace a conventional wideband digital receiver, solve the cross-channel signal problem, and achieve intra-pulse ...
Tao Chen, Lizhi Liu, Xiangsong Huang
doaj +1 more source
ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.This study employed an adaptive iterative strategy combining machine learning algorithms, domain knowledge, experimental design, and experimental feedback to aim to precisely and quickly discover high‐entropy ceramics with excellent energy storage performance.
Haowen Liu +4 more
wiley +1 more source
Monitoring and assessment for obstructive sleep apnea
FlexMat, EarlyView.This review systematically classifies Obstructive Sleep Apnea (OSA) monitoring indicators into three categories: physical, biochemical, and electrophysiological indicators, and lists several methods for each category. Abstract Obstructive sleep apnea (OSA) is a common chronic sleep‐disordered breathing disease characterized by recurrent upper airway ...
Yaowen Xu +6 more
wiley +1 more source
Ultra‐Fast and Energy‐Efficient PZT Optical Tunable Delay Lines for Programmable Photonic Systems
Laser &Photonics Reviews, EarlyView.Thin‐film PZT enables optical tunable delay lines that simultaneously offer sub‐nanosecond switching, low propagation loss, and zero‐static‐power programmability. A five‐bit on‐chip delay line provides a maximum delay of 387.5 ps with a resolution of 12.5 ps, while reconfigurable MZI splitting ratios further enable non‐volatile optical arbitrary ...
Cunyu Shi +11 more
wiley +1 more source
Biomimetic echolocation with application to radar and sonar sensing [PDF]
, 2014 Nature provides a number of examples where acoustic echolocation is the primary sensing modality, the most well-known of these being the bat, whale and dolphin. All demonstrate a remarkable ability to "see with sound".
Griffiths, Hugh +7 more
core +1 more source
Multi-criteria radar waveform design based on game theory
Xibei Gongye Daxue XuebaoIn complex battlefield environments, regarding the issues of weak anti-jamming capability, poor environmental adaptability, and resultant performance imbalance in radar waveforms designed based on single criterion, a radar waveform design method under ...
SONG Keman +5 more
doaj +1 more source
Remote Sensing, 2020 Hybrid quadrature polarimetric (hybrid quad-pol) synthetic aperture radar (SAR) is proposed as a potential candidate for the full-polarimetric SAR mode. It allows balanced range ambiguity performance and simplified system structure.
Pengfei Zhao +4 more
doaj +1 more source
Small, EarlyView.This study introduced a Ge‐Te‐S co‐sputtering process to resolve the performance trade‐off between GeTe and GeS in OTS selector devices, and improved device durability through nitrogen doping. Furthermore, in a 1S‐1R structure incorporating phase‐change memory devices, it simultaneously achieved excellent thermal stability, durability, high‐speed ...
Min Su Kang +6 more
wiley +1 more source
The Earth seen from Space by Radar Remote Sensing - a Vision for 2025 [PDF]
, 2012 In a changing and dynamic world, high-resolution and timely geospatial information with global access and coverage becomes increasingly important. Constellations of radar satellites will play a major role in this task, since spaceborne radar is the only ...
Alberto Moreira, Moreira, Alberto
core +1 more source