DOD and DOA Estimation in Bistatic Non-Uniform Multiple-Input Multiple-Output Radar Systems

This letter investigates the joint estimation of the direction of departure (DOD) and direction of arrival (DOA) for multi-input multi-output (MIMO) radar systems. A novel estimation method based on non-uniform array configuration is proposed and the practical identifiability of the corresponding pa...

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Bibliographic Details
Published in:IEEE communications letters 2012-11, Vol.16 (11), p.1796-1799
Main Authors: Yao, Bobin, Wang, Wenjie, Yin, Qinye
Format: Article
Language:English
Subjects:
Algorithms
angle estimation
Applied sciences
Arrays
Computer simulation
Detection, estimation, filtering, equalization, prediction
Direction of arrival
Doppler
Doppler effect
Estimation
Exact sciences and technology
Information, signal and communications theory
Mathematical models
MIMO
MIMO radar
Multiple-input multiple-output radar
non-unform array
parameter identifiability
Radar
Radiolocalization and radionavigation
Signal and communications theory
Signal, noise
Telecommunications
Telecommunications and information theory
US Department of Defense
Vectors
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Summary:This letter investigates the joint estimation of the direction of departure (DOD) and direction of arrival (DOA) for multi-input multi-output (MIMO) radar systems. A novel estimation method based on non-uniform array configuration is proposed and the practical identifiability of the corresponding parameter is analyzed. The key idea is to use the Doppler diversity to construct a virtual MIMO array. Through the theoretical proof, we demonstrate that the proposed method can provide much stronger parameter identifiability than the conventional ones, and also can improve the parameter estimation performance. Numerical simulations verify the effectiveness of the proposed algorithm.
ISSN:1089-7798
1558-2558
DOI:10.1109/LCOMM.2012.091212.121605