Journal
REMOTE SENSING
Volume 8, Issue 10, Pages -Publisher
MDPI AG
DOI: 10.3390/rs8100817
Keywords
SAR; archaeology; object detection; Altai; spatial resolution
Categories
Funding
- National Natural Science Foundation of China [61331016, 41174120]
- CAS-CSIRO Cooperative Research Program [GJHZ1407]
- Archaeocare Foundation
- Swiss National Science Foundation [P2SKP1_168315]
- Swiss National Science Foundation (SNF) [P2SKP1_168315] Funding Source: Swiss National Science Foundation (SNF)
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The Altai Mountains are a heritage-rich archaeological landscape with monuments in almost every valley. Modern nation state borders dissect the region and limit archaeological landscape analysis to intra-national areas of interest. Remote sensing can help to overcome these limitations. Due to its high precision, Synthetic Aperture Radar (SAR) data can be a very useful tool for supporting archaeological prospections, but compared to optical imagery, the detectability of sites of archaeological interest is limited. We analyzed the limitations of SAR using TerraSAR-X images in different modes. Based on ground truth, the discernibility of burial mounds was analyzed in different SAR acquisition modes. We show that very-high-resolution TerraSAR-X staring spotlight images are very well suited for the task, with >75% of the larger mounds being discernible, while in images with a lower spatial resolution only a few large sites can be detected, at rates below 50%.
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