Results 11 to 20 of about 3,985 (273)
IEEE AccessLow-altitude atmospheric ducts are anomalous atmospheric phenomena in the troposphere, significantly affecting the operation of microwave or ultrashort-wave radio systems.
Mian Wu +3 more
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Remote Sensing, 2022 The atmospheric duct (AD) is an anomalous structure in which electromagnetic waves can make transhorizon propagation. ADs often occur in the formation, development and disappearance of tropical cyclones (TCs). In this work, the eXtreme Gradient Boosting (
Lang Huang +3 more
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Quantitative Prediction of Sea Clutter Power Based on Improved Grey Markov Model
Atmosphere, 2022 The detection and prediction of sea clutter power is the basis of inversing atmospheric duct. At present, the technology of atmospheric duct within radar detection range is relatively perfect, but the long-distance inversion of atmospheric duct is ...
Zihao Chen +3 more
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The Statistical Characteristics of Atmospheric Ducts Observed Over Stations in Different Regions of American Mainland Based on High-Resolution GPS Radiosonde Soundings [PDF]
Frontiers in Environmental Science, 2022 Atmospheric duct is an anomalous atmospheric structure that affects electromagnetic wave propagation. The important characteristics of the atmospheric ducts include duct probability, duct height, duct strength, and the thickness of the trapping layer. To
Lang Huang, Xiaofeng Zhao, Yudi Liu
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The detectable double atmospheric ducts for RFC [PDF]
2014 IEEE Antennas and Propagation Society International Symposium (APSURSI), 2014 Refractivity from clutter (RFC) systems are defined for retrieving the atmospheric ducts from the sea clutter echo of a radar in open sea or coastal environment. However, some ducts hardly have an effect on the clutter echo. Consequently, the RFC technique suffers inherent limitations and is unable to provide information about these ducts.
Douvenot, Rémi +2 more
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Prediction of Atmospheric Duct Conditions from a Clutter Power Spectrum Using Deep Learning
Remote SensingThis paper presents a method for predicting atmospheric duct conditions from a clutter power spectrum using deep learning. To accurately predict the duct conditions, deep learning with a binary classification is applied to the proposed refractivity from ...
Taekyeong Jin +3 more
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Arctic Atmospheric Ducting Characteristics and Their Connections with Arctic Oscillation and Sea Ice
Atmosphere, 2022 Atmospheric ducting is an anomalous atmospheric structure that affects electromagnetic wave propagation. In the context of global warming, the navigation capacity of the Arctic is increased, and the atmospheric duct can affect communication and ...
Ting Qin +6 more
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Atmosphere, 2020 Intraseasonal oscillation of the evaporation duct, lasting 30–60 days, has been identified over the South China Sea (SCS) summer monsoon region based on multiple reanalyses and observational data.
Wentao Jia +3 more
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Machine Learning and Deep Learning-Based Atmospheric Duct Interference Detection and Mitigation in TD-LTE Networks [PDF]
Future InternetThe variations in the atmospheric refractivity in the lower atmosphere create a natural phenomenon known as atmospheric ducts. The atmospheric ducts allow radio signals to travel long distances.
Rasendram Muralitharan +3 more
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Near-Surface Thermodynamic Influences on Evaporation Duct Shape
AtmosphereThis study utilizes in situ measurements and numerical weather prediction forecasts curated during the Coupled Air–Sea Processes Electromagnetic Ducting Research (CASPER) east field campaign to assess how thermodynamic properties in the marine ...
Sarah E. Wessinger +3 more
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