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The negative alpha filter: a new Processing technique for polarimetric SAR interferometry

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2 Author(s)
S. R. Cloude ; Sch. of Electr. & Electron. Eng., Univ. of Adelaide, SA, Australia ; M. L. Williams

In this letter we develop a new concept, the negative alpha filter, which we suggest has application for quantitative estimation of surface parameters beneath vegetation using polarimetric synthetic aperture radar (SAR) interferometry (POLInSAR). We first derive the filter and then validate it using simulations of L-band coherent forest scattering. We then show initial results of applying the filter to airborne data from the German Aerospace Center's E-SAR L-band sensor.

Published in:

IEEE Geoscience and Remote Sensing Letters  (Volume:2 ,  Issue: 2 )