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Multichannel video impulse radar for landmine detection

The paper describes the design of a cheap ultra wideband GPR front-end suitable for subsurface imaging with resolution sufficient for antipersonnel mine recognition. The front-end comprises a generator section, a multi-static antenna system and a receiving unit based on a multi-channel sampling converter. In comparison with commercially available video impulse GPR systems the key advantages of the front-end are considerably larger bandwidth, high precision of measurements of scattered field, ability to measure polarimetric structure of the scattered field and high pulse repetition rate resulting in fast data acquisition.