Localization of Near-Field Sources: A Reduced-Dimension MUSIC Algorithm

Zhang, Xiaofei; Chen, Weiyang; Wang, Zheng; Xia, Zhong-xi; Wang, Yunfei

doi:10.1109/lcomm.2018.2837049

Cited by 81 publications

(51 citation statements)

References 10 publications

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“…The AoA and AoD generated using the proposed algorithms are needed to be paired for each user. In other works, the channel matrix is generated using Kronecker product of antenna steering vectors for pairing the AoA and AoD. The channel matrix with Kronecker product has the size (( N r ∗ N t )×1).…”

Section: Proposed Mr and Mr‐rc Algorithm For Angle Estimationmentioning

confidence: 99%

“…The steering vector used improved the performance compared to ESPRIT. In the work of Zhang et al, a reduced dimension MUSIC algorithm has been proposed for finding the elevation angle and the range. Here, the range and the angle parameter are separated, such that the 2D spectral search is reduced to a 1D search, thus decreasing computational complexity.…”

Section: Introductionmentioning

confidence: 99%

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Sparse linear array in the estimation of AoA and AoD with high resolution and low complexity

Beulah¹,

Venkateswaran²

2019

Trans Emerging Tel Tech

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High resolution with low complexity angle of arrival and departure estimation in real-time radar and wireless communication has been a topic of intensive research. In this paper, two novel algorithms are proposed, namely, minimum redundancy and minimum redundancy-reduced correlation algorithms, for finding the angles of arrival and departure with high resolution and low complexity. The first of the two proposed algorithms is meant for the reduction in the active number of antennas (minimum redundancy) without generating virtual angles. The second involves a reduction in subspace leakage to enable improvement of the peak power of the estimated true angles. The authors have assumed the users as coherent and the channel following Saleh-Valenzuela model. This has been done for the validation of the performance of the proposed algorithms. Numerical simulations demonstrate the out performance of the existing sparse array subspace-based methods in the estimation of angles by the proposed methods.

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Section: Proposed Mr and Mr‐rc Algorithm For Angle Estimationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Sparse linear array in the estimation of AoA and AoD with high resolution and low complexity

Beulah¹,

Venkateswaran²

2019

Trans Emerging Tel Tech

View full text Add to dashboard Cite

show abstract

“…However, in practice, near-field (NF) signals can be present around the array with spherical wavefronts. In this case, both the DOA and range parameters need to be characterized, and some methods have been developed specifically for NF source localization [4,5].…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, in this paper, based on a uniform linear array of cocentered orthogonal loop and dipole (COLD) antennas, a novel noncircularity based localization algorithm for NF polarized sources is proposed. Based on the principle of rank reduction (RARE) [4,5], the DOA and range parameters of NF noncircular sources can be successively estimated through two one-dimensional (1-D) spectral searches. Meanwhile, estimating the polarization parameters and noncircular phase are also achieved with a closed-form expression.…”

Section: Introductionmentioning

confidence: 99%

“…s k (t) is the complex envelope of the kth signal, n m (t) is white Gaussian noise which is independent and identically distributed (I.I.D) with zero mean and uncorrelated with the sources. The range of the NF signals is within the Fresnel region [4][5][6][7][8][9][10], which means r k ∈ (0.62 √ D 3 /λ, 2D 2 /λ) with D being the array aperture and λ being the wavelength.…”

Section: Introductionmentioning

confidence: 99%

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