Dike deformation measurement with airborne repeat pass interferometry
conference paper
An urgent need exists for accurate deformation measurements for the purpose of risk management. SAR interferometry can be used to measure small deformations. An experiment was carried out with the PHARUS C-band system in 1999-2000. The dike that was the subject of this experiment deforms at a rate of approximately one centimeter per month due to the weak underground. Several interferograms were created, Accurate deformations can only be derived from high quality interferograms. This necessitates the same beam direction during the two flights constituting an interferogram. This was accomplished by (i) electronic beam steering and (ii) by navigating the aircraft with DGPS/INS to within abour 5 meter of the planned track. This paper presents the experimental results up till now.
TNO Identifier
95409
Source title
Proceedings of the 5th International Airborne Remote Sensing Conference, 17-20 September 2001, San Francisco, CA
Place of publication
San Francisco, CA
Files
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