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Broad use of underground sensing led to development of a new signal processing algorithms which can extract much more information about soil and underground objects physical characteristics. These algorithms require information about how specific attenuation is dependent upon frequency, about phase velocity of radio waves in soil or about signals phase structure in cases when underground objects are present or absent. This kind of information can be easily obtained when using probinging signal with stepped change of a carrier frequency. Radar systems with this kind of sensing signals are called Stepped Frequency Continues Wave (SFCW) GPR.
Date of Conference: 21-26 June 2010