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The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences. Vol. XXXVII. Part Bl. Beijing 2008
The second part of this paper has described a new experimental
airborne, single-pass L-Band, fully polarimetric InSAR system,
which is currently under test. It has been developed in the
context of a particular set of objectives: to provide a test-bed for
the extraction of bare-earth DEMs beneath extended forest
canopy. PolInSAR techniques are being used to extract the
information acquired during a series of test flights in forested
areas for which suitable ground truth is available. The overall
objective of the program is to determine the accuracy with
which bare-earth DEMs can be extracted using PolInSAR
methodology in the absence of temporal decorrelation and
motion effects. Some preliminary PolInSAR results have been
presented to illustrate current status (May, 2008). Further
results should be available for presentation at the ISPRS2008
conference.
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ACKNOWLEDGEMENTS
The authors would like to acknowledge their many colleagues
at Intermap who have made the NEXTMap program a reality,
Dr. Shane Cloude who has provided significant help and insight
regarding theoretical and practical PolInSAR issues, and
Alberta Ingenuity Fund for partial financial support. We also
thank Terrapoint Canada Inc. for providing the lidar ground
truth data.
