Abstract
The 3-D GPR technique has been successfully applied for archaeological investigation in west central Taiwan. Slate coffins within the archaeological site in Puli area were clearly depicted through poststack processing and migration of GPR data. The 3-D poststack processing include filtering, static corrections, common-midpoint gathering, velocity analysis, normal- and dip-moveout corrections, stacking, time- to-depth conversion and depth migration. Although the depth of investigation maybe confined within top 2.0 m soil, we have achieved high resolution depth image through careful survey design, data processing and interpretation of GPR data. GPR can provide detailed 3-D information without the high cost of extensive excavation. The GPR can be considered as a viable and reliable tool for archaeologists in order to expand its rigorous application to archaeological problems.
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