期刊
SIGNAL PROCESSING
卷 173, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.sigpro.2020.107512
关键词
MIMO radar; Electromagnetic vector sensors; Angle estimation
资金
- China NSF [61601504, 61701046]
In this Communication, we revisit the parameter estimation problem in a bistatic multiple-input multiple-output (MIMO) radar system with electromagnetic vector sensors (EMVS), and a modified algorithm is suggested. Firstly, the signal subspace is obtained via propagator method. Thereafter, automatically paired spatial angles are achieved by exploiting rotation invariant property as well as vector cross-product strategy. Finally, polarization parameters are calculated based on least squares technique. The suggested algorithm is analyzed in terms of identifiability, complexity, theoretical asymptotic error as well as Cramer-Rao bound (CRB). It is computationally-friendly and it offers automatically paired direction estimation. Moreover, it provides better estimation accuracy than state-of-the-art matrix-based methods. Simulation results verify the improvement of the proposed algorithm. (C) 2020 Elsevier B.V. All rights reserved.
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