Propagator Rooting Method Direction of Arrival Estimation Based on Real Data

In this paper, we present a novel and computationally efficient DOA estimation method that works equally well for both non-coherent and coherent sources. This method is based on applying the propagator method as a linear operator to the covariance matrix of the received data taken from a single snap...

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Bibliographic Details
Main Authors: Tayem, Nizar, Hussain, Ahmed A, Veramareddy, Vinay Reddy, Soliman, Abdel-Hamid, Alghazo, Jaafar M.
Format: Conference Proceeding
Language:English
Subjects:
coherent sources
complexity
Direction-of-arrival estimation
DOA estimation
Eigenvalues and eigenfunctions
Estimation
Matrix decomposition
Military communication
propagator method Root-MUSIC
Real-time systems
real-valued data
Simulation
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Summary:In this paper, we present a novel and computationally efficient DOA estimation method that works equally well for both non-coherent and coherent sources. This method is based on applying the propagator method as a linear operator to the covariance matrix of the received data taken from a single snapshot of signals impinging on a uniform linear array. A Toeplitz Hermitian data matrix is constructed and transformed to a real-valued data matrix which significantly reduces computational complexity. The propagator method obviates the need to use either eigenvalue decomposition or singular value decomposition in calculating the DOA. Finally, the Root-MUSIC method is employed in conjunction with proposed method to estimate the angles of arrivals from the received signal. Simulation results demonstrate the efficacy of the proposed method.
ISSN:2155-7586
DOI:10.1109/MILCOM52596.2021.9653081