Zhou, Zheng-ShuHamasaki, TadashiSato, MotoyukiBoerner, Wolfgang-Martin2008-04-212008-04-212004IEEE International Geoscience and Remote Sensing Symposium proceedings, 20-24 September, 2004 [electronic resource]: pp.1248-12510780387422http://hdl.handle.net/2440/42180Subtitle of Symposium: Science for society: exploring and managing a changing planetSAR is usually used for airborne or space borne remote sensing. It can also advantageously be exploited in a ground-based radar imaging system named Ground-based SAR (GB-SAR). We extended earlier approaches and developed an ultra-wideband, ground-based, fully polarimetric SAR (Pol-GB-SAR) system for the monitoring of vegetation growth variations. Measurements on three type trees in different conditions were carried out by the developed SAR system. We proposed effective three-dimensional (3-D) broadband Pol-GB-SAR data processing algorithms in the paper. In situ polarimetric calibration obviously improved the features of the system. 3-D images were reconstructed from the acquired data by a series of signal processing procedures based on a variety of wave equation migration methods. By implementing methods of radar polarimetry, the broadband GB-SAR system has possibility for monitoring changes in tree structure characteristics due to seasonal variations. Interpreted results demonstrated the target scattering characteristics in different vegetation growth situations showed good agreement with the ground truth.Copyright © 2004 IEEEAlgorithms; calibration; synthetic aperture radar; vegetation; ground methods; remote sensingConference paper00200765242008042116365210.1109/IGARSS.2004.1368642