A Novel Method to Extract Target One-dimensional Fully Polarimetric Characteristic

Target high resolution and fully polarimetric information is of important application in such fields as remote sensing, target classification, recognition and so on. In order to extract the one-dimensional fully polarimetric and high resolution of moving targets, fully polarimetric Orthogonal Frequency Diversion Multiplex (OFDM) waveform is designed, based on the principle of simultaneous polarization measurement scheme. Its signal processing algorithm is advanced. Firstly, the fully polarimetric OFDM transmitted and received signal models are established. Using the orthogonality of each sub-carriers, the coupling interference between different polarization channels can be eliminated. Then fully polarimetric MUSIC (P-MUSIC) algorithm is used to obtain target high resolution range profile and extract the fully polarimetric information of each scattering centers. Meanwhile, target movement effect on sub-carrier orthogonality is analyzed. Finally, simulations are performed using the measured data of a target model in anechoic chamber to verify the effectiveness of corresponding signal process, and its measurement performance is also simulated. This study here is of valuable reference for designing new polarimetric imaging radar system.