SAR Processing for Buried Objects Detection using GPR
Mine detection techniques require extremely high detection rates. In this paper, signal processing algorithm is introduced to be applied in the ground penetrating radar (GPR) which is more suitable for this application. In GPR microwave signals penetrate into the ground until a buried object reflects them back and the reflected signals are processed in order to extract information about the target. The proposed algorithm generates complex range profiles by applying Inverse Fast Fourier Transform (IFFT) and corrects phase shift due to the system delay. Afterwards in order to improve resolution, synthetic aperture radar (SAR) processing is applied and SAR matrix is formed as GPR moves to the next position. The results obtained show that this algorithm has overcome the problem of the strong reflected signals from the ground and also the other unwanted signals and clutter Keywords GPR; Landmines; IFFT; SAR processing