A Real-Time Detection Method of Atmospheric Duct Based on AIS
In the process of conducting the atmospheric waveguide transmission characteristic test in the sea area,it is found that whether the over-the-horizon ships can be detected by the Automatic Identification System(AIS)has a great correlation with the strength of the atmospheric waveguide.Therefore,this paper proposes a real-time detection method of the atmospheric waveguide based on AIS.This method can detect whether there is an atmospheric waveguide between two points beyond the horizon in real time,which effectively makes up for the defect that the current atmos-pheric waveguide detection method can only detect the current area.This paper also gives the calculation method of at-mospheric waveguide transmission loss based on AIS and a visualization method of atmospheric waveguide detection re-sults.The comparison between the experimental data and the simulation results shows that the method in this paper has high accuracy and certain practical value.
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