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- W2801419617 abstract "Abstract The study focused on variability of surface reflections amplitudes of GPR horn antenna in relation to distance between an antenna and a surface is presented in the paper. The air-coupled antenna with the central frequency of 1 GHz was used in the investigation. Four types of surfaces (dry pavement, wet pavement, metal plate and composite layer from gypsum and wood) were tested. The distance of antenna above the surfaces was changed in the range from 37.5 cm to 53.5 cm. The amplitudes of negative and positive peaks and their variability were analysed in relation to the distance of antenna above the surfaces. Moreover, the influence of changes in the peaks of negative and positive amplitudes on the total amplitudes was assessed. It was found out the amplitudes of negative peaks for all investigated surfaces were relatively consistent in the range from 40.5 cm to 48.5 cm and the moderate decline was identified in the case of amplitudes of positive peaks in the range of distances from 37.5 cm to 51.5 cm. This decline influences the tendency of total amplitudes. Based on the results of analysis it can be stated the distance of air-coupled antenna above the surface can influence the value of total amplitude and the differences depend on the type of surface." @default.
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- W2801419617 date "2016-05-01" @default.
- W2801419617 modified "2023-10-16" @default.
- W2801419617 title "Variability of Surface Reflection Amplitudes of GPR Horn Antenna Depending on Distance between Antenna and Surface" @default.
- W2801419617 doi "https://doi.org/10.1515/cee-2016-0010" @default.
- W2801419617 hasPublicationYear "2016" @default.
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