POLARIMETRIC RESTORATION OF RADAR TARGET SIGNATURE IN THE VHF RANGE IN SPITE OF MULTIPATH EFFECTS

The simultaneous reception of two fixed polarisation states (horizonta l and vertical) enables us to obtain a Jones vector for a transmitting polarisation state. A second Jones vector is obtained for the transmi tting orthogonal polarisation state, so that a full polarimetric 2 x 2 received voltage matrix is constructed. This matrix takes into accoun t multipath propagation dire to ground reflection effects acting on th e target scattering matrix. The aim of this study is to show how the p olarised reflection coefficients for the earth's surface and the targe t Euler parameters can be reconstructed from a reduced number of full polarimetric received voltage matrices. We present the results obtaine d by simulation and point out the limitations of such a system.