Two-Dimensional Direction-of-Arrival Estimation of Noncircular Signals in Coprime Planar Array with High Degree of Freedom
Joint Authors
Ba, Bin
Xu, Haiyun
Zhang, Yankui
Wang, Daming
Lin, Size
Source
Mathematical Problems in Engineering
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-01-02
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
In estimating the two-dimensional (2D) direction-of-arrival (DOA) using a coprime planar array, there are problems of the limited degree of freedom (DOF) and high complexity caused by the spectral peak search.
We utilize the time-domain characteristics of signals and present a high DOF algorithm with low complexity based on the noncircular signals.
The paper first analyzes the covariance matrix and ellipse covariance matrix of the received signals, vectorizes these matrices, and then constructs the received data of a virtual uniform rectangular array (URA).
2D spatial smoothing processing is applied to calculate the covariance of the virtual URA.
Finally, the paper presents an algorithm using 2D multiple signal classification and an improved algorithm using unitary estimating signal parameters via rotational invariance techniques, where the latter solves the closed-form solutions of DOAs replacing the spectral peak search to reduce the complexity.
The simulation experiments demonstrate that the proposed algorithms obtain the high DOF and enable to estimate the underdetermined signals.
Furthermore, both two proposed algorithms can acquire the high accuracy.
American Psychological Association (APA)
Xu, Haiyun& Wang, Daming& Lin, Size& Ba, Bin& Zhang, Yankui. 2019. Two-Dimensional Direction-of-Arrival Estimation of Noncircular Signals in Coprime Planar Array with High Degree of Freedom. Mathematical Problems in Engineering،Vol. 2019, no. 2019, pp.1-10.
https://search.emarefa.net/detail/BIM-1195013
Modern Language Association (MLA)
Xu, Haiyun…[et al.]. Two-Dimensional Direction-of-Arrival Estimation of Noncircular Signals in Coprime Planar Array with High Degree of Freedom. Mathematical Problems in Engineering No. 2019 (2019), pp.1-10.
https://search.emarefa.net/detail/BIM-1195013
American Medical Association (AMA)
Xu, Haiyun& Wang, Daming& Lin, Size& Ba, Bin& Zhang, Yankui. Two-Dimensional Direction-of-Arrival Estimation of Noncircular Signals in Coprime Planar Array with High Degree of Freedom. Mathematical Problems in Engineering. 2019. Vol. 2019, no. 2019, pp.1-10.
https://search.emarefa.net/detail/BIM-1195013
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1195013