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DOA Estimation for Multiple Targets in MIMO Radar with Nonorthogonal Signals
Joint Authors
Chen, Peng
Cao, Zhenxin
Chen, Zhimin
Jin, Yi
Source
Mathematical Problems in Engineering
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-07-15
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
This paper addresses the direction of arrival (DOA) estimation problem in the colocated multiple-input multiple-output (MIMO) radar with nonorthogonal signals.
The maximum number of targets that can be estimated is theoretically derived as rankRsN, where N denotes the number of receiving antennas and Rs is the cross-correlation matrix of the transmitted signals.
Therefore, with the rank-deficient cross-correlation matrix, the maximum number that can be estimated is less than the radar with orthogonal signals.
Then, a multiple signal classification- (MUSIC-) based algorithm is given for the nonorthogonal signals.
Furthermore, the DOA estimation performance is also theoretically analyzed by the Carmér-Rao lower bound.
Simulation results show that the nonorthogonality degrades the DOA estimation performance only in the scenario with the rank-deficient cross-correlation matrix.
American Psychological Association (APA)
Cao, Zhenxin& Chen, Peng& Chen, Zhimin& Jin, Yi. 2018. DOA Estimation for Multiple Targets in MIMO Radar with Nonorthogonal Signals. Mathematical Problems in Engineering،Vol. 2018, no. 2018, pp.1-7.
https://search.emarefa.net/detail/BIM-1208415
Modern Language Association (MLA)
Cao, Zhenxin…[et al.]. DOA Estimation for Multiple Targets in MIMO Radar with Nonorthogonal Signals. Mathematical Problems in Engineering No. 2018 (2018), pp.1-7.
https://search.emarefa.net/detail/BIM-1208415
American Medical Association (AMA)
Cao, Zhenxin& Chen, Peng& Chen, Zhimin& Jin, Yi. DOA Estimation for Multiple Targets in MIMO Radar with Nonorthogonal Signals. Mathematical Problems in Engineering. 2018. Vol. 2018, no. 2018, pp.1-7.
https://search.emarefa.net/detail/BIM-1208415
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1208415