Abstract

GPR system equipment is used to detect embedded objects in the earth’s surface. This system applied a method that is based on the reflection technique of the electromagnetic wave produced by the dipole antenna. To obtain a clear image of the GPR radargram, the output signal of the GPR antenna will be processed using the envelope detector (ED) technique. In this study, the frequency range used in developing GPR system simulation is from 0.07 to 0.08 GHz. The GPR system simulations were designed to perform scanning using GPR system to detect embedded iron object in the dry sandy soil at the depths of 0, 10, 100, 500, 900, 1000 and 1500 mm. Through this study, based on the GPR radargram, the only embedded object that cannot be detected in the simulation is the object embed at 1500 mm. Comparison of the GPR radargram produced without and using envelope detector techniques proves that the envelope detector technique is capable of generating GPR radargram and displaying embedded objects more clearly.

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