ABSTRACT
In the early days of GPR, the standard data set with which to make interpretations was comprised only of reflection profiles, most of which were images of unprocessed and unfiltered reflections. GPR practitioners throughout the 1990s continued to be slow in incorporating amplitude maps into their usual processing steps. When Dean Goodman wrote the first amplitude analysis program for GPR, he recognized that strati-graphic complexity can sometimes be overcome in amplitude analysis to produce useful maps. A great deal of variation in processing and interpretation methods continued during the early 2000s, with some GPR users sticking to two-dimensional analysis of profiles and others beginning to process data almost wholly in amplitude slices. In 2001, Dean Goodman and the author attended a conference in Japan on GPR for archaeology, hosted by Yasushi Nishimura, where they were amazed to see what the University of Austria GPR scientists had developed.
