The radon transform for the tomography of vegetated areas

The tomography of vegetated areas has recently gained interest in the radar framework due to the many, relevant related applications. However, obtaining three-dimensional reconstructions of large vegetated regions is currently of difficult reach due to the need of acquiring and processing large amounts of data. On the other side, new acquisition configurations (e.g., bistatic or multistatic), allowing to enlarge the amount of data at one´s disposal, are currently analyzed and stimulate the introduction of accurate and fast reconstruction algorithms, capable to flexibly deal with the available information. To this end, in this paper, we present a new approach for the tomographic reconstruction of vegetated areas employing a scattering model based on the Radon transform. In this way, imaging the cross-sectional areas of the regions of interest can be obtained by an FFT-based, filtered backprojection algorithm. The performance and potentiality of the approach are pointed out by numerical examples^.