Leckebusch, J. and Peikert, R. (2001). Investigating the true resolution and three-dimensional capabilities of ground-penetrating radar data in archaeological surveys: measurements in a sand box. Archaeol Prospection 8 (1). Vol 8(1), pp. 290-40.
 Title The title of the publication or report |
Investigating the true resolution and three-dimensional capabilities of ground-penetrating radar data in archaeological surveys: measurements in a sand box | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Issue The name of the volume or issue |
Archaeol Prospection 8 (1) | ||||||||||
Series The series the publication or report is included in |
Archaeological Prospection | ||||||||||
Volume Volume number and part |
8 (1) | ||||||||||
Page Start/End The start and end page numbers. |
290 - 40 | ||||||||||
Biblio Note This is a Bibliographic record only. |
The ADS have no files for download on this page but further information is available online, normally as an electronic version maintained by the Publisher, or held in a larger collection such as an ADS Archive. Please refer to the DOI or URI listed in the Relations section of this record to locate the information you require. In the case of non-ADS resources, please be aware that we cannot advise further on availability. | ||||||||||
Publication Type The type of publication - report, monograph, journal article or chapter from a book |
Journal | ||||||||||
Abstract The abstract describing the content of the publication or report |
The capabilities of ground-penetrating radar (GPR) were studied in a sand box under controlled conditions. To reduce the size of the necessary sand box, the structures were scaled by 50 per cent and the antenna frequency used was doubled from 500 MHz to 900 MHz. Blocks of concrete were buried to model Roman walls. Initial tests showed a great effect of the antenna orientation on the visibility of the structures, which is difficult to account for during a survey. The GPR profiles also showed a significant reduction of the signal amplitude by a strong reflector, obscuring any underlying object. After three-dimensional migration a single block was perfectly imaged. The signals from a second block, buried below the first, were obscured by several multiples, which prevent its exact detection. This was confirmed by numerical modelling. Comparing real data with modelling results showed that exploding reflector and plane wave models use an incorrect ray path. Only a so-called one-to-one adoption model gives comparable results. The measurements with two buried stones are in good agreement with the data from normal surveys. Tests have shown that the superposition of the reflection patterns from single stones makes the detection of any interior structure of a wall impossible. To visualise the three-dimensional information in the data set, a new technique was used: an isosurface of the reflection strength or amplitude envelope was calculated. This procedure makes the full three-dimensional information understandable and reduces the amount of data significantly. The isosurfaces can now be exported and combined with any other archaeological information in a geographical information system (GIS). The speed of this process makes it suitable for large surveys. | ||||||||||
Year of Publication The year the book, article or report was published |
2001 | ||||||||||
Locations Any locations covered by the publication or report. This is not the place the book or report was published. |
|
||||||||||
Source Where the record has come from or which dataset it was orginally included in. |
BIAB
(The British & Irish Archaeological Bibliography (BIAB))
|
||||||||||
Relations Other resources which are relevant to this publication or report |
|
||||||||||
Created Date The date the record of the pubication was first entered |
19 Jun 2001 |
