Rekonstruktion der Form von Graeben fuer Archaeologische Magnetische Prospektion (bibtex)
by Alois Eder-Hinterleitner
Abstract:
Magnetic prospection is a very important instrument for preparing an archeological excavation. Apart from this, it enables new information, which can mostly not be obtained by the excavation, because a prospection can cover, in contrast to an excavation, the whole site. To get quantitative information about the subsurface of the earth, it is necessary to determine the shape of the objects producing the magnetic anomalies. In this diploma theses we try to reconstruct the shape of filled ditches. First we describe the measuring method and the image preprocessing steps to visualize the data. Then a magnetic model for filled ditches is presented, which allows the determination of the shape of the ditch by estimating the depth of the humus-like soil at the measuring points. The reconstruction of the depth is done by the Least-Square-Method using a simulated annealing schedule. To get archeologically plausible ditches a regularization of the depth is needed. The Least-Square terms are weighted to make the algorithm more robust. The weights are calculated by using all the information about the measuring procedure. At last the goals of the diploma theses are presented.
Reference:
Rekonstruktion der Form von Graeben fuer Archaeologische Magnetische Prospektion (Alois Eder-Hinterleitner), Technical report, PRIP, TU Wien, 1993.
Bibtex Entry:
@TechReport{TR016,
  author =	 "{A}lois {E}der-{H}interleitner",
  institution =	 "PRIP, TU Wien",
  number =	 "PRIP-TR-016",
  title =	 "{R}ekonstruktion der {F}orm von {G}raeben fuer
                  {A}rchaeologische {M}agnetische {P}rospektion",
  year =	 "1993",
  url =		 "ftp://ftp.prip.tuwien.ac.at/pub/publications/trs/tr16.ps.gz",
  abstract =	 "Magnetic prospection is a very important instrument
                  for preparing an archeological excavation. Apart
                  from this, it enables new information, which can
                  mostly not be obtained by the excavation, because a
                  prospection can cover, in contrast to an excavation,
                  the whole site. To get quantitative information
                  about the subsurface of the earth, it is necessary
                  to determine the shape of the objects producing the
                  magnetic anomalies. In this diploma theses we try to
                  reconstruct the shape of filled ditches. First we
                  describe the measuring method and the image
                  preprocessing steps to visualize the data. Then a
                  magnetic model for filled ditches is presented,
                  which allows the determination of the shape of the
                  ditch by estimating the depth of the humus-like soil
                  at the measuring points. The reconstruction of the
                  depth is done by the Least-Square-Method using a
                  simulated annealing schedule. To get archeologically
                  plausible ditches a regularization of the depth is
                  needed. The Least-Square terms are weighted to make
                  the algorithm more robust. The weights are
                  calculated by using all the information about the
                  measuring procedure. At last the goals of the
                  diploma theses are presented.",
}
Powered by bibtexbrowser