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Near field targets localization using bistatic MIMO system with symmetric arrays

In this paper, we propose a subspace based method to localize multiple targets in the near field region of a bistatic MIMO system with symmetric uniform linear arrays (ULAs). The proposed method uses the symmetry in the transmitting and receiving arrays to estimate the angle of departure (AOD) and angle of arrival (AOA) of each target by using 1D rank reduction estimator (RARE) based method. For each estimated AOA, the range from the center of the transmitting array to the corresponding target is estimated by using 1D multiple signal classification (MUSIC). Finally, the receiver side range of each target is estimated by using the other three estimated location parameters in 2D MUSIC technique which also automatically pairs the location parameters.