Change Detection using RADARSAT-1 Interferometry: Mine Site Monitoring

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Authors
  1. Mattar, K.E.
Corporate Authors
Defence R&D Canada - Ottawa, Ottawa ONT (CAN)
Abstract
This study examines the potential of using satellite repeat-pass interferometry for wide-area surveillance and change detection. Several RADARSAT-1 interferometric datasets were acquired in 2003 over active mines in South Australia and Saskatchewan, Canada. Threecolour RGB images derived from the various image magnitudes supplements and complements the interferometric coherence information for detecting even subtle scene changes. Together they were found to be a potentially valuable tool for wide area surveillance and long term site monitoring, providing potentially important contextual information. The limited resolution of RADARSAT-1 did not permit conclusive assessment of changes detectable in the mine complex itself, and the lack of ground truth did not permit accurate terrain height estimation. The absence of ring-like phase patterns that characterize decimetrelevel terrain subsidence implies that terrain subsidence was not present within the scene.

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Report Number
DRDC-OTTAWA-TM-2004-261 — Technical Memorandum
Date of publication
01 Dec 2004
Number of Pages
54
DSTKIM No
CA025255
CANDIS No
522841
Format(s):
CD ROM

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