Ground Penetrating Radar Radargram Filter using Singularity Expansion Method

摘要

In this paper, the singularity expansion method (SEM)is used to improve the signal-to-clutter ratio of radargrams obtainedwith a ground penetration radar (GPR). SEM allows to select the polesof the GPR signals corresponding to unwanted signals, clutter, andalso reflections of specific buried objects. A highly reflective metallicmaterial was used to assess the use of SEM as a tool to eliminateunwanted reflections and signals produced by a GPR. Selected clutterpoles are eliminated from each frame of the SAR image in order tokeep only desired poles for analysis. Finally, the reconstructedradargram obtained applying SEM is compared with the imageobtained using a well-known processing technique. Results show thatthe proposed technique can be used to straightforwardly removeundesired signals measured with GPRs.