Extraction model of Soil Water Content Information based on Least Square Method for GPR

Abstract

Mapping the soil water content in large area is an essential process in various fields such as, agriculture, ecology, civil engineering, as well as flood and water resource management. Most of the available methods to gauge soil moisture content are tedious and expensive. Water content of the soil will affect the soil electric properties. In GPR system, the soil electrical properties will affect the received reflected wave. Detailed information about Ground Penetrating Radar (GPR) reflected wave propagation is potentially useful for extracting the soil water content. Extraction model of Soil Water Content Information based on Least Square Method for GPR System is proposed in this paper. Theoretical and numerical studies on the proposed method have been performed and the results show that the proposed method is useful to extract information about volumetric water content and thickness of topsoil from the GPR data.