The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
Copyrights notice
The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
이 편지에서는 거대하고 균일한 직사각형 배열을 위한 효율적인 하이브리드 DOA(도착 방향) 추정 체계가 고안되었습니다. 이 방식에서는 2차원(XNUMXD) 이산 푸리에 변환을 기반으로 하는 DOA 추정기가 먼저 적용되어 단일 데이터 스냅샷에 대한 대략적인 초기 DOA 추정치를 획득합니다. 이후 매우 작은 영역 내에서 반복 탐색 추정기를 이용하여 미세한 DOA를 정확하게 추정하게 된다. 한편 Nyström 기반 방법은 필요한 잡음 부분 공간 투영 행렬을 올바르게 계산하는 데 사용되어 전체 차원 샘플 상관 행렬과 고유값 분해의 직접 계산을 피합니다. 따라서 제안된 기법은 DOA를 추정할 수 있을 뿐만 아니라 특히 대규모 안테나 배열 시나리오에서 계산 비용을 절감할 수 있습니다. 제안된 하이브리드 추정 기법의 효율성을 입증하기 위해 시뮬레이션 결과가 포함되었습니다.
Wei JHANG
Feng Chia University
Shiaw-Wu CHEN
Feng Chia University
Ann-Chen CHANG
Ling Tung University
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부
Wei JHANG, Shiaw-Wu CHEN, Ann-Chen CHANG, "Efficient Hybrid DOA Estimation for Massive Uniform Rectangular Array" in IEICE TRANSACTIONS on Fundamentals,
vol. E103-A, no. 6, pp. 836-840, June 2020, doi: 10.1587/transfun.2019EAL2172.
Abstract: In this letter, an efficient hybrid direction-of-arrival (DOA) estimation scheme is devised for massive uniform rectangular array. In this scheme, the DOA estimator based on a two-dimensional (2D) discrete Fourier transform is first applied to acquire coarse initial DOA estimates for single data snapshot. Then, the fine DOA is accurately estimated through using the iterative search estimator within a very small region. Meanwhile, a Nyström-based method is utilized to correctly compute the required noise-subspace projection matrix, avoiding the direct computation of full-dimensional sample correlation matrix and its eigenvalue decomposition. Therefore, the proposed scheme not only can estimate DOA, but also save computational cost, especially in massive antenna arrays scenarios. Simulation results are included to demonstrate the effectiveness of the proposed hybrid estimate scheme.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/transfun.2019EAL2172/_p
부
@ARTICLE{e103-a_6_836,
author={Wei JHANG, Shiaw-Wu CHEN, Ann-Chen CHANG, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={Efficient Hybrid DOA Estimation for Massive Uniform Rectangular Array},
year={2020},
volume={E103-A},
number={6},
pages={836-840},
abstract={In this letter, an efficient hybrid direction-of-arrival (DOA) estimation scheme is devised for massive uniform rectangular array. In this scheme, the DOA estimator based on a two-dimensional (2D) discrete Fourier transform is first applied to acquire coarse initial DOA estimates for single data snapshot. Then, the fine DOA is accurately estimated through using the iterative search estimator within a very small region. Meanwhile, a Nyström-based method is utilized to correctly compute the required noise-subspace projection matrix, avoiding the direct computation of full-dimensional sample correlation matrix and its eigenvalue decomposition. Therefore, the proposed scheme not only can estimate DOA, but also save computational cost, especially in massive antenna arrays scenarios. Simulation results are included to demonstrate the effectiveness of the proposed hybrid estimate scheme.},
keywords={},
doi={10.1587/transfun.2019EAL2172},
ISSN={1745-1337},
month={June},}
부
TY - JOUR
TI - Efficient Hybrid DOA Estimation for Massive Uniform Rectangular Array
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 836
EP - 840
AU - Wei JHANG
AU - Shiaw-Wu CHEN
AU - Ann-Chen CHANG
PY - 2020
DO - 10.1587/transfun.2019EAL2172
JO - IEICE TRANSACTIONS on Fundamentals
SN - 1745-1337
VL - E103-A
IS - 6
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - June 2020
AB - In this letter, an efficient hybrid direction-of-arrival (DOA) estimation scheme is devised for massive uniform rectangular array. In this scheme, the DOA estimator based on a two-dimensional (2D) discrete Fourier transform is first applied to acquire coarse initial DOA estimates for single data snapshot. Then, the fine DOA is accurately estimated through using the iterative search estimator within a very small region. Meanwhile, a Nyström-based method is utilized to correctly compute the required noise-subspace projection matrix, avoiding the direct computation of full-dimensional sample correlation matrix and its eigenvalue decomposition. Therefore, the proposed scheme not only can estimate DOA, but also save computational cost, especially in massive antenna arrays scenarios. Simulation results are included to demonstrate the effectiveness of the proposed hybrid estimate scheme.
ER -