Results 31 to 40 of about 43,943 (330)
Remote Sensing, 2023 The propagation of electromagnetic waves beyond the line of sight can be caused by atmospheric ducts, which are significant concerns in the fields of radar and communication.
Ning Yang, Debin Su, Tao Wang
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A Sliced Parabolic Equation Method to Characterize Maritime Radio Propagation
Sensors, 2023 For maritime broadband communications, atmospheric ducts can enable beyond line-of-sight communications or cause severe interference. Due to the strong spatial–temporal variability of atmospheric conditions in near-shore areas, atmospheric ducts have ...
Yuzhen Wang +3 more
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Weight Loss Function for the Cooperative Inversion of Atmospheric Duct Parameters
Atmosphere, 2022 Low-altitude atmospheric ducts are abnormal atmospheric phenomena in the troposphere, impacting the operation of microwave or ultrashort wave radio systems.
Jie Han +7 more
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Analysis and testing on the interference due to atmospheric duct of 5G
Dianxin kexue, 2022 Abstact: 5G (time division duplexing, TDD) system will be effected by the interference from 5G system due to atmospheric duct.The risk and current situation of 5G system in 2.6 GHz band were introduced and the interference characteristics of 5G ...
Xingang SONG +3 more
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Low-Level Atmospheric Ducts [PDF]
Nature, 1949 IN a communication in Nature1, I suggested an explanation for the occurrence of low-level atmospheric ducts over the sea, which had been reported by McPetrie and Starkey2 in conditions of strong winds. It was suggested that the previous history of the air was the governing factor in deciding whether an atmospheric duct would occur. I am indebted to Dr.
openaire +2 more sources
Dianxin kexue, 2022 Atmospheric duct interference is a seriousinternal interference of large-scale TDD wireless communication system according to specific meteorological conditions.The causes and classification of the atmospheric duct interference were analyzed firstly.Then
Xiaoyun WANG +4 more
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Characterization of a Double Mesospheric Bore Over Europe [PDF]
, 2017 Observations of a pair of mesospheric bore disturbances that propagated through the nighttime mesosphere over Europe are presented. The observations were made at the Padua Observatory, Asiago (45.9\ub0N, 11.5\ub0E), by the Boston University all-sky ...
Baumgardner, Jeffrey L. +11 more
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Dynamics of methane ebullition from a peat monolith revealed from a dynamic flux chamber system [PDF]
, 2014 Methane (CH4) ebullition in northern peatlands is poorly quantified in part due to its high spatiotemporal variability. In this study, a dynamic flux chamber (DFC) system was used to continuously measure CH4 fluxes from a monolith of near‐surface ...
Reeve, Andrew S. +4 more
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Remote Sensing, 2022 At present, 5G base stations are densely distributed in major cities based on improving user concentrations and the large demand for services in urban hotspot areas.
Kai Yang +7 more
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Validation of the Harvard Lyman-α in situ water vapor instrument: Implications for the mechanisms that control stratospheric water vapor [PDF]
, 2009 Building on previously published details of the laboratory calibrations of the Harvard Lyman-α photofragment fluorescence hygrometer (HWV) on the NASA ER-2 and WB-57 aircraft, we describe here the validation process for HWV, which includes laboratory ...
Anderson, J. G. +10 more
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