Multiple interferences suppression with space-polarization null-decoupling for polarimetrie array

The adaptive digital beamforming technique in the space-polarization domain suppresses interference with forming coupling nulls of space and polarization domain. When there is mainlobe, it will cause serious mainlobe distortion, that target detection suffers from. To overcome this problem make radar cope complex multiple interferences scenarios, we propose a and/or sidelobe suppression method for dual array radar. Specifically, proposed consists signal preprocessing based on angle estimation degree (DoP), filtering criterion linear constraint. provides accurate estimated parameters interference, which contributes to null-decoupling mainlobe. can reduce main lobe distortion while suppressing interferences. effectiveness verified by simulations.