Angle estimation for bistatic MIMO radar based on core tensor PARAFAC decomposition

This paper discusses the problem of joint direction-of-departure (DOD) and direction-of-arrival (DOA) estimation for bistatic multiple-input multiple-output radar. A three-order tensor model is formulated to exploit the multidimensional structure inherent the received data. To obtain an accurate angle estimation in low signal-to-noise ratio scene, the high-dimensional tensor data is then compressed to core tensor. Joint DOD and DOA estimation is linked to PARAFAC decomposition of the core tensor data. The proposed algorithm can achieve automatic pairing of the estimated angles and outperform the existing methods. The experimental results demonstrate the effectiveness of the proposed method.