Two-Step Root-MUSIC for Direction of Arrival Estimation without EVDSVD Computation
Joint Authors
Yan, Fenggang
Liu, Shuai
Jin, Ming
Wang, Jun
Source
International Journal of Antennas and Propagation
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-08-06
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
Most popular techniques for super-resolution direction of arrival (DOA) estimation rely on an eigen-decomposition (EVD) or a singular value decomposition (SVD) computation to determine the signal/noise subspace, which is computationally expensive for real-time applications.
A two-step root multiple signal classification (TS-root-MUSIC) algorithm is proposed to avoid the complex EVD/SVD computation using a uniform linear array (ULA) based on a mild assumption that the number of signals is less than half that of sensors.
The ULA is divided into two subarrays, and three noise-free cross-correlation matrices are constructed using data collected by the two subarrays.
A low-complexity linear operation is derived to obtain a rough noise subspace for a first-step DOA estimate.
The performance is further enhanced in the second step by using the first-step result to renew the previous estimated noise subspace with a slightly increased complexity.
The new technique can provide close root mean square error (RMSE) performance to root-MUSIC with reduced computational burden, which are verified by numerical simulations.
American Psychological Association (APA)
Yan, Fenggang& Liu, Shuai& Wang, Jun& Jin, Ming. 2018. Two-Step Root-MUSIC for Direction of Arrival Estimation without EVDSVD Computation. International Journal of Antennas and Propagation،Vol. 2018, no. 2018, pp.1-8.
https://search.emarefa.net/detail/BIM-1169344
Modern Language Association (MLA)
Yan, Fenggang…[et al.]. Two-Step Root-MUSIC for Direction of Arrival Estimation without EVDSVD Computation. International Journal of Antennas and Propagation No. 2018 (2018), pp.1-8.
https://search.emarefa.net/detail/BIM-1169344
American Medical Association (AMA)
Yan, Fenggang& Liu, Shuai& Wang, Jun& Jin, Ming. Two-Step Root-MUSIC for Direction of Arrival Estimation without EVDSVD Computation. International Journal of Antennas and Propagation. 2018. Vol. 2018, no. 2018, pp.1-8.
https://search.emarefa.net/detail/BIM-1169344
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1169344