On the accuracy of scatterers LOS rotation estimation procedures in radar polarimetry

The Line-of-Sight (LOS) rotation angle of scatterers can be estimated using polarimetric radar measurements. Exact estimation is unrealistic since noise and clutter are almost always present in the data. The paper presents the derivation of an approximated distribution, mean bias and variance analysis, of the scatterers LOS rotation angle using polarimetry, when estimated for the high-coherent (quasi-deterministic) scattering case. Example of scatterers fulfilling such condition are the so-called Coherent Scatterers (CSs).