Robust DOA estimation method for MIMO radar via deep neural networks

J Cong, X Wang, M Huang, L Wan - IEEE Sensors Journal, 2020 - ieeexplore.ieee.org
It is a serious problem that the performance loss is suffered by traditional Direction-of-Arrival
(DOA) estimation methods in non-ideal environment, such as mutual coupling of array …

Nuclear norm minimization framework for DOA estimation in MIMO radar

X Wang, L Wang, X Li, G Bi - Signal Processing, 2017 - Elsevier
In this paper, the direction of arrival (DOA) estimation for noncircular sources in multiple-
input multiple-output (MIMO) radar is dealt with by a novel nuclear norm minimization (NNM) …

Deep learning for DOA estimation in MIMO radar systems via emulation of large antenna arrays

AM Ahmed, USKPM Thanthrige… - IEEE …, 2021 - ieeexplore.ieee.org
We present a MUSIC-based Direction of Arrival (DOA) estimation strategy using small
antenna arrays, via employing deep learning for reconstructing the signals of a virtual large …

Joint DOD and DOA estimation in slow-time MIMO radar via PARAFAC decomposition

F Xu, SA Vorobyov, X Yang - IEEE Signal Processing Letters, 2020 - ieeexplore.ieee.org
We develop a new tensor model for slow-time multiple-input multiple-output (MIMO) radar,
and apply it for joint direction-of-departure (DOD), and direction-of-arrival (DOA) estimation …

Efficient transmit beamspace design for search-free based DOA estimation in MIMO radar

A Khabbazibasmenj, A Hassanien… - IEEE Transactions …, 2014 - ieeexplore.ieee.org
In this paper, we address the problem of transmit beamspace design for multiple-input
multiple-output (MIMO) radar with colocated antennas in application to direction-of-arrival …

Direction finding in MIMO radar with large antenna arrays and nonorthogonal waveforms

F Wen, C Mao, G Zhang - Digital Signal Processing, 2019 - Elsevier
As an important research branch in multiple-input multiple-output (MIMO) radar, orthogonal
waveforms are always desirable. In practice, however, the orthogonality may not be always …

Off-grid DOA estimation using sparse Bayesian learning in MIMO radar with unknown mutual coupling

P Chen, Z Cao, Z Chen, X Wang - IEEE Transactions on Signal …, 2018 - ieeexplore.ieee.org
In the practical radar with multiple antennas, the antenna imperfections degrade the system
performance. In this paper, the problem of estimating the direction of arrival (DOA) in a …

Off-grid DOA estimation for colocated MIMO radar via reduced-complexity sparse Bayesian learning

T Liu, F Wen, L Zhang, K Wang - IEEE Access, 2019 - ieeexplore.ieee.org
Recent advance on signal processing has witnessed increasing interest in machine
learning. In this paper, we revisit the problem of direction-of-arrival (DOA) estimation for …

Generalized co-prime MIMO radar for DOA estimation with enhanced degrees of freedom

J Shi, G Hu, X Zhang, F Sun, W Zheng… - IEEE sensors …, 2017 - ieeexplore.ieee.org
In this paper, we propose a generalized co-prime multiple-input multiple-output (MIMO)
configuration for direction of arrival estimation. Compared with the conventional coprime …

Transmit energy focusing for DOA estimation in MIMO radar with colocated antennas

A Hassanien, SA Vorobyov - IEEE Transactions on Signal …, 2011 - ieeexplore.ieee.org
In this paper, we propose a transmit beamspace energy focusing technique for multiple-
input multiple-output (MIMO) radar with application to direction finding for multiple targets …