Polarization statistical properties of electromagnetic waves radiated from communication base stations to UHF band radar

UHF band radar can be influenced by the electromagnetic (EM) waves radiated from the communication base stations. Polarimetric measurements and analysis of the EM waves will be helpful to grasp the multi-dimension character of the EM environment which the UHF band radar confronts. In this study, polarization statistical characterization models of the base-station signals received by UHF band radar are established. Probability density functions (PDFs) of the polarization ratio (PR) and the degree of polarization (DoP) are derived in closed forms. Radar polarimetric measurement experiments have been developed for the signals radiated from the single-base station (SBS) and from the multi-base stations (MBS), respectively. Comparisons of these theoretically derived PDFs are made to measurements from real collected data. The different polarization statistical properties of the EM waves from SBS and MBS are revealed.