Beam-Doppler Unitary ESPRIT for Multitarget DOA Estimation
Joint Authors
Peng, Jinye
Wen, Cai
Zhou, Yan
Tao, Mingliang
Wu, Jianxin
Source
International Journal of Antennas and Propagation
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-03-26
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
High-resolution direction of arrival (DOA) estimation is a critical issue for mainbeam multitarget tracking in ground-based or airborne early warning radar system.
A beam-Doppler unitary ESPRIT (BD-UESPRIT) algorithm is proposed to deal with this problem.
Firstly, multiple snapshots without spatial aperture loss are obtained by using the technique of time-smoothing.
Then the conjugate centrosymmetric discrete Fourier transform (DFT) matrix is used to transform the extracted data into beam-Doppler domain.
Finally, the rotational invariance property of the space-time beam is exploited to estimate DOA of the target.
The DOA estimation accuracy is improved greatly because the proposed algorithm takes full advantage of temporal information of the signal.
Furthermore, the computational complexity of the presented algorithm is reduced dramatically, because the degree of freedom after beam transformation is very small and most of the operations are implemented in real-number domain.
Numerical examples are given to verify the effectiveness of the proposed algorithm.
American Psychological Association (APA)
Wen, Cai& Zhou, Yan& Tao, Mingliang& Wu, Jianxin& Peng, Jinye. 2018. Beam-Doppler Unitary ESPRIT for Multitarget DOA Estimation. International Journal of Antennas and Propagation،Vol. 2018, no. 2018, pp.1-10.
https://search.emarefa.net/detail/BIM-1168512
Modern Language Association (MLA)
Wen, Cai…[et al.]. Beam-Doppler Unitary ESPRIT for Multitarget DOA Estimation. International Journal of Antennas and Propagation No. 2018 (2018), pp.1-10.
https://search.emarefa.net/detail/BIM-1168512
American Medical Association (AMA)
Wen, Cai& Zhou, Yan& Tao, Mingliang& Wu, Jianxin& Peng, Jinye. Beam-Doppler Unitary ESPRIT for Multitarget DOA Estimation. International Journal of Antennas and Propagation. 2018. Vol. 2018, no. 2018, pp.1-10.
https://search.emarefa.net/detail/BIM-1168512
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1168512