Application of Polarimetric SAR Tomography on Agricultural Vegetation for Scattering Characterisation

The SAR backscattering of agricultural vegetation is intrinsically rather complex, for instance due to possibly present orientation effects. In order to advance its understanding, this paper explores the application of tomographic SAR techniques for full 3-D information extraction. The possibility to detect variations of the scattering characteristics between species as well as between different growth stages is shown. Further, a procedure for the separation of ground and volume contributions is proposed and first results are discussed. This investigation has been carried out by using a multi-temporal multi-baseline fully polarimetric data set purposely acquired by DLR’s airborne sensor F-SAR in 2014.

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