A joint direction of departure (DOD) and direction of arrival (DOA) estimation algorithm for multiple input and multiple output (MIMO) radar with electromagnetic vector sensors is proposed. A novel bistatic MIMO radar system with multiple transmitting sensors and multiple receiving electromagnetic vector sensors is introduced. The proposed algorithm uses the internal structure features of the vector sensors and the subspace rotation invariance to obtain the initial DOA, and then an optimal weighted subspace fitting algorithm is employed to implement a one-dimensional search to get the DOD and DOA estimations in succession. The impact of array geometry on the estimation accuracy of the DOD and DOA is discussed. The proposed algorithm is suitable for irregular array geometry, and requires no parameter pairing nor two-dimensional searching. Simulations show the effectiveness of the algorithm, and the estimation accuracy is close to that of the CRB.
WANG Kerang, HE Yapeng, ZHU Xiaohua
. Joint DOD and DOA Estimation for MIMO Radar with Electromagnetic Vector Sensors[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2011
, 32(12)
: 2287
-2292
.
DOI: CNKI:11-1929/V.20110815.1716.002
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