Christian Fischer

ORCID: 0000-0001-7843-0439
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About
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Research Areas
  • Cultural Heritage Materials Analysis
  • Building materials and conservation
  • Advanced SAR Imaging Techniques
  • Conservation Techniques and Studies
  • Geophysical Methods and Applications
  • Microwave Imaging and Scattering Analysis
  • Archaeology and ancient environmental studies
  • Ancient Mediterranean Archaeology and History
  • Synthetic Aperture Radar (SAR) Applications and Techniques
  • Maritime and Coastal Archaeology
  • Antenna Design and Optimization
  • Radar Systems and Signal Processing
  • Metal Extraction and Bioleaching
  • Religion, Theology, and Education
  • Historical and Archaeological Studies
  • Pleistocene-Era Hominins and Archaeology
  • Eurasian Exchange Networks
  • Numerical methods in inverse problems
  • Asian Geopolitics and Ethnography
  • Geoscience and Mining Technology
  • Media, Gender, and Advertising
  • Remote-Sensing Image Classification
  • Historical Legal Studies and Society
  • Thermography and Photoacoustic Techniques
  • Soil Moisture and Remote Sensing

University of California, Los Angeles
2007-2021

Getty Conservation Institute
2013-2021

Samueli Institute
2019-2021

Airbus (Germany)
2016

Brown University
2013

The University of Texas at Austin
2013

University of Southern California
2013

Karlsruhe Institute of Technology
2004

Karlsruhe University of Applied Sciences
2003

Clausthal University of Technology
2002

Spectral imaging technology, which records simultaneously spectral and spatial information about an object, was initially developed for remote sensing has since been successfully applied to other areas of research. Although relatively new the field conservation, this non-invasive method investigation already provided promising results in analysis paintings written documents, characterization materials digital documentation. This article reviews published literature relating application...

10.1179/sic.2006.51.supplement-1.3 article EN Studies in Conservation 2006-06-01

TerraSAR-X is a satellite that scheduled to be launched in October 2006 and currently being built the framework of public–private partnership between German Aerospace Centre (DLR) EADS Astrium GmbH Germany will carry an X-band synthetic aperture radar (SAR) instrument equipped with active phased array antenna. Its operational flexibility allow use for scientific commercial applications. High amplitude phase stability achieved by carbon fibre reinforced plastic slotted waveguide radiator high...

10.1049/ip-rsn:20045119 article EN IEE Proceedings - Radar Sonar and Navigation 2006-01-01

A recent scientific investigation on Hellenistic and Roman wall paintings of funerary domestic contexts from Nea (‘New’) Paphos, located in the southwest region Cyprus, has revealed new information paintings’ constituent materials, their production technology technical style painting. founded late 4th century BC, became capital island during period (294–58 BC) developed into a thriving economic center that continued through (58 BC–330 AD). systematic, analytical study ancient Cypriot...

10.3390/arts8020074 article EN cc-by Arts 2019-06-24

AbstractAbstractThe art of wall painting in Cyprus during the transitional period from Greco-Roman to Byzantine times introduced a wide spectrum materials that reflect social structure and organization period, provincial transregional interactions technological savoir faire. These include natural minerals – locally available or imported organic fibers, gums, oils, artificially produced, high-fired vitreous composites other chemically synthesized products. This paper investigates presents...

10.1179/sic.2010.55.supplement-2.96 article EN Studies in Conservation 2010-01-01

The present article provides chemical, paleontological and mineralogical data obtained during an archaeometric characterization of 40 samples (33 pottery sherds, 5 clay samples, 1 sand sample red earth pigment) collected in the Via dei Sepolcri ceramic workshop Pompeii, Italy. was still active 79 CE eruption Mt. Vesuvius our investigation reveal distinct differences between geological raw materials belonging to early 'Phase 1′ production (from beginning 1st century 62 earthquake) a...

10.1016/j.dib.2020.106706 article EN cc-by-nc-nd Data in Brief 2020-12-30

10.1007/s12520-019-00876-7 article EN Archaeological and Anthropological Sciences 2019-07-03

Mining activities lead to ground movements at the surface, resulting in changes of topographic and hydrologic situation. As surface feature can long-lasting environmental influences, an up-to-date surveillance is key importance. Spatial temporal hydrological situation result from amount subsidence, local ground-water situation, land-cover land-use. An important factor intensity impairment regulated by properties soil vegetation data. To estimate dynamic system...

10.1117/12.453691 article EN Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE 2002-01-25

The invention of the synthetic aperture radar (SAR) principle dates back to early 1950s. basic idea is filter targets in a side looking according their Doppler history azimuth and by pulse or FM modulation compression range. Since this time SAR systems have been, from technical point view, considerably refined state art where resolution accuracy are close theoretical limits. This paper presents new system for single frequency SAR, achieved phase comparison. configuration becomes extremely...

10.1109/igarss.1999.771546 article EN 2003-01-20

Extract Extended abstract of a paper presented at Microscopy and Microanalysis 2007 in Ft. Lauderdale, Florida, USA, August 5 – 9,

10.1017/s1431927607075332 article EN Microscopy and Microanalysis 2007-08-01

Obsidian Butte is an important lithic source for obsidian and artifacts from this location are distributed across archaeological sites in southern California adjacent parts of northern Mexico. For study, we used drill core material infrared stimulated luminescence (IRSL) dating potassium feldspar extracted tuffaceous sediment directly underlying obsidian-bearing lava Butte. In addition, a sample lacustrine below the sedimentary unit was dated by same method. Stratigraphically consistent ages...

10.1080/1947461x.2019.1581678 article EN California Archaeology 2019-01-02

Ground penetration radar (GPR) is currently regarded as an option for the detection of antipersonnel mines. However, on way to operational GPR systems, major difficulties, e.g., surface reflection, limited soil, required fine resolution and a high clutter level have be faced. Low operating frequencies very wide bandwidths are necessary achieve ground least 0.2 m order few centimeters. In present paper, GPR-SAR system configuration aiming at buried mines by means handheld device examined...

10.1109/igarss.2000.857298 article EN 2002-11-07
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