Processing of Raptor 3D GPR Data (Condor software)
In the previous notes, we've covered a few steps concerning the cleaning up of geometry and the loading of raw GPR array data. In this note, we'll deal with some necessary processing steps before data interpretation.
Figure 1 below shows the raw data from one section of a project. The lower image shows the data with an overlay of the geometry. This data set is by no means ideal. Firstly, there are quite some gaps in the data. Secondly, and more striking, is the inconsistent coverage, with different orientations, collection patterns, and overlapping data. Some filtering has been applied in the form of a dc-removal filter, and a threshold level for time-zero alignment. We'll see now how it looks after a few simple steps.