Advanced polarization estimation method using the spatial polarimetric characteristic of antenna

The polarization of radar antenna vary with scan direction. This phenomenon is called Spatial Polarization Characteristic (SPC) of antenna. Based on the SPC of single polarized antenna, a novel polarization estimation method is established. Comparing with the traditional estimation method, this one has the following advantages: (i) It does not need dual-polarization channels to estimate the signal polarization; (ii) The polarization and angle of arriving (AOA) of a periodic signal can be estimated simultaneously; (iii) The fullpolarization pattern of the antenna can be matched automatically during the estimation. The feasibility of this method is proved by simulation.