The interpretation of stepped frequency continuous wave GPR data in the Chapel of Jesuit's Church, Valletta, Malta

Abstract

Some field works have been carried out during the training course of GPR applications for civil engineering organized at the University of Malta, Valletta in the frame work of COST Action TU1208 and the processing and interpretation of GPR data are here reported. The data were collected inside the Chapel of the Church of Jesuits located in Valletta campus, through the Stepped Frequency Continuous Wave Radar (SFCW), a prototype developed by Raffaele Persico and his team. The data collected in frequency domain, were transformed in time domain, and an interpretation of Data in 2D scans and 3D is shown. Processing consists of moving starting time, gain, moving background, 1D filtering and migration. The possible buried structures under basement are presented as images of time slices which correspond with depth. Keywords: stepped frequency continuous, GPR data, interpretation, processing