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Statistical Analysis of Hybrid Atmospheric Ducts over the Northern South China Sea and Their Influence on Over-the-Horizon Electromagnetic Wave Propagation

Journal of Marine Science and Engineering, 2023
Atmospheric ducts are special super-refractive atmospheric structures that can cause over-the-horizon propagation of electromagnetic waves. Different types of atmospheric ducts have different influences on electromagnetic wave propagation.
Yang Shi, Shuwen Wang, Fan Yang, Kunde Yang   +3 more
doaj   +4 more sources

Atmospheric Ducts and Their Electromagnetic Propagation Characteristics in the Northwestern South China Sea

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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Using the Decomposition-Based Multi-Objective Evolutionary Algorithm with Adaptive Neighborhood Sizes and Dynamic Constraint Strategies to Retrieve Atmospheric Ducts [PDF]

Sensors, 2020
The traditional method of retrieving atmospheric ducts is to use the special sensor of weather balloons or rocket soundings to obtain information intelligently, and it is very expensive. Today, with the development of technology, it is very convenient to
Yanbo Mai, Hanqing Shi, Qixiang Liao, Zheng Sheng, Shuai Zhao, Qingjian Ni, Wei Zhang   +6 more
doaj   +3 more sources

Statistical Analysis of the Spatiotemporal Distribution of Lower Atmospheric Ducts over the Seas Adjacent to China, Based on the ECMWF Reanalysis Dataset

Remote Sensing, 2022
On the basis of 12 years of the European Centre for Mesoscale Weather Forecasts (ECMWF) reanalysis dataset, we statistically analyzed the spatiotemporal distribution of lower atmospheric ducts over the seas around China, and we investigated the possible ...
Yong Zhou, Yi Liu, Jiandong Qiao, Jinze Li, Chen Zhou   +4 more
doaj   +4 more sources

Experimental Analysis of Atmospheric Ducts and Navigation Radar Over-the-Horizon Detection

Remote Sensing, 2022
Since the height of sea detection radar antenna and ship targets is relatively low, it is generally believed that its over-the-horizon detection is mainly caused by the evaporation duct at sea.
Li-Feng Huang, Cheng-Guo Liu, Hong-Guang Wang, Qing-Lin Zhu, Li-Jun Zhang, Jie Han, Yu-Sheng Zhang, Qian-Nan Wang   +7 more
doaj   +4 more sources

Comparative Analysis of Intelligent Optimization Algorithms for Atmospheric Duct Inversion Using Automatic Identification System Signals

Remote Sensing, 2023
Using intelligent optimization algorithms to retrieve atmospheric duct parameters by monitoring automatic identification system (AIS) signals at sea is a new passive remote sensing technology for atmospheric ducts.
Li-Feng Huang, Cheng-Guo Liu, Zhi-Peng Wu, Li-Jun Zhang, Hong-Guang Wang, Qing-Lin Zhu, Jie Han, Ming-Chen Sun   +7 more
doaj   +4 more sources

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, Jia-Ji Wu, Hong-Guang Wang, Qing-Lin Zhu, Li-Jun Zhang, Chao Zhang, Qian-Nan Wang, Hui Zhao   +7 more
doaj   +4 more sources

A Sliced Parabolic Equation Method to Characterize Maritime Radio Propagation [PDF]

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, Ting Zhou, Tianheng Xu, Honglin Hu   +3 more
doaj   +2 more sources

Surface atmospheric duct over Svalbard, Arctic, related to atmospheric and ocean conditions in winter

Arctic, Antarctic, and Alpine Research, 2022
Atmospheric ducts could disturb radar detection and radio communication in the Arctic and risk increasing human activities under Arctic warming. It is an urgent need to understand atmospheric ducts in the Arctic, with distinct atmospheric systems and ...
Jinhuan Zhu, Han Zou, Linlin Kong, Libo Zhou, Peng Li, Wei Cheng, Shuangshuang Bian   +6 more
doaj   +3 more sources

UAV-aided maritime communication over the Pacific Ocean using the elevated duct toward future wireless networks [PDF]

Scientific Reports
To bolster long-range maritime communication, unmanned aerial vehicle (UAV)-aid communications have garnered increased attention as traditional maritime communication solutions face challenges from geographical and meteorological factors. This work first
Jian Wang, Wenlu Liu, Cheng Yang
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