Results 31 to 40 of about 4,721 (271)
On the Possibility of Detecting Evaporation Ducts Through GNSS Reflectometry
Remote SensingAn evaporation duct is a kind of atmospheric event with a refractive index exceeding the curvature of the Earth, which mostly exists on the ocean surface.
Fu Li +8 more
doaj +2 more sources
Evaporation duct assessment from meteorological buoys [PDF]
Radio Science, 2002 The evaporation duct over the sea is usually assessed using bulk meteorological measurements. This paper investigates the utility of meteorological buoys as a source for these bulk measurements and compares evaporation duct assessments using two buoys in southern California waters separated by 128 km.
exaly +2 more sources
Atmosphere, 2022 The evaporation duct is a particular type of atmospheric structure that always appears on the open ocean. Predicting the evaporation duct height (EDH) accurately and in a timely manner is of great significance for the practical application of marine ...
Qi Zhang, Xi Chen, Fuyu Yin, Fei Hong
doaj +2 more sources
Research on the Microwave Propagation in the Evaporation Duct with Obstacles
Advanced Materials Research, 2011 The influence of the microwave propagation in the evaporation duct is studied by solving wide angle parabolic equation using Fast-Fourier transform method.
Li Xin Guo +2 more
core +2 more sources
A Comparison of the Machine Learning Algorithm for Evaporation Duct Estimation
Radioengineering, 2013 In this research, a comparison of the relevance vector machine (RVM), least square support vector machine (LSSVM) and the radial basis function neural network (RBFNN) for evaporation duct estimation are presented.
C. Yang
doaj +1 more source
AtmosphereIn this study, a diagnostic model for evaporation ducts was established based on the Coupled Ocean–Atmosphere–Wave–Sediment Transport (COAWST) and the Naval Postgraduate School (NPS) models.
Zhigang Shan +9 more
doaj +2 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 +7 more
doaj +1 more source
NWPP-EDH: Numerical weather prediction products evaporation duct regional prediction model
Frontiers in Earth Science, 2023 The evaporation duct is a special atmospheric stratification that can affect the propagation path of electromagnetic waves at sea, thus it is crucial for the ability of the radio communication systems.
Xingyu Chai +5 more
doaj +1 more source
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
doaj +1 more source
Performance analysis of code division multiplexing communication under evaporation duct environment
Frontiers in Signal Processing, 2022 The evaporation duct is an effective means for realizing non-line-of-sight (NLOS) wireless transmission over the sea. However, the effects of marine weather conditions on electromagnetic propagation have rarely been studied.
Wenjing Liu +4 more
doaj +1 more source