The objective of this paper is to show how the GPR can be used to asphaltic evaluation and how to process the data using a new library of language R called RGPR. Google earth was used to asset the traveled distance as well as to guess the position of viaducts on the radargrama. Furthermore, sections of interest were chosen based on local anomalies. Along this paper, a sequence of processing tools were used, including time 0 correction, time gain and spacial filters. At the end, it's concluded that the use of this library could be a free substitute to other paid softwares.
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