3d Sar Tomography of the Paracou Forest; Methods and Results

Many studies about the vegetation layer by means of SAR tomography are model based or make use of some sort of superresolution algorithms. By one side such approaches are often necessary because of the limited resolution characterizing the datasets. On the other side results can be easily a ected by poor accuracy whenever the model does not t. In this paper a totally model free approach is proposed to perform SAR tomography. It is based on the existing relationship between the complex re ectivity pro le along the cross range direction and the multi baseline signal: a Fourier transform. Whenever the baseline distribution is suitable a new stack of uncorrelated complex image can be obtained, each one associated with a particular elevation inside the vegetation layer.