Experimental study of consistency about evaporation duct's appearance and the radar's over-the-horizon detection

The use of the evaporation duct which appears in a higher probability by ship radar and communication electronic systems to realize the over-the-horizon detection and signal transmission has become the current hotspot.In order to test the correlation of the emergence of evaporation duct and radar's over-the-horizon detection,atmospheric duct tester is used which has high precision as well as fast response to measure the evaporation duct in the sky above the sea,at the same time,the radar which is fixed on the coast is used to carry out the detection.The actual results show that when the evaporation duct appears in the radar's work area,radar would be able to achieve the over-the-horizon detection,and the strength of the radar's signal is different with the change of the intensity of the evaporation duct.The consistency about the evaporation duct's actual measure and the radar signals' over-the-horizon propagation is proved.