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Initial results using GPS navigation with the Foerster magnetometer system at the World Heritage site of Cyrene, Libya
Author(s) -
Gaffney Chris,
Gaffney Vince,
Cuttler Richard,
Yorston Ron
Publication year - 2008
Publication title -
archaeological prospection
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.785
H-Index - 38
eISSN - 1099-0763
pISSN - 1075-2196
DOI - 10.1002/arp.330
Subject(s) - magnetometer , global positioning system , fluxgate compass , orientation (vector space) , remote sensing , computer science , compass , data processing , field (mathematics) , computer vision , sensor fusion , artificial intelligence , real time computing , magnetic field , geology , geography , physics , telecommunications , cartography , database , mathematics , geometry , quantum mechanics , pure mathematics
This Short Report summarizes some initial results using real time GPS to navigate and collect magnetometer data using Foerster sensors and a magnetic cart. The Foerster system is primarily aimed at the detection of buried ordnance and, by comparison to some other magnetometer sensors, the reported sensitivity is relatively low. However, the sensors require no alignment in the field, nor does the system require a regular contiguous grid to be established across the survey area. The latter means that data grids of different sizes and orientation can be measured and stitched together as part of data restoration prior to processing. The accurate positioning of the data means that ‘staggering’, which is often seen in time‐based collection strategies, is not apparent in the data; overall less processing is required to produce a final image than is required for other fluxgate instruments. Data from a survey at Cyrene are reproduced to illustrate the strengths of the system. Copyright © 2008 John Wiley & Sons, Ltd.