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
기존 DOA(도착 방향) 방법의 성능은 수중 환경에서 음속의 불확실성에 영향을 받기 쉽습니다. 이러한 문제를 해결하기 위해 본 논문에서는 미지의 음속 하에서 광대역 신호에 대한 L자 배열을 이용한 수중 DOA 추정 방법을 제안한다. 제안된 방법은 L자형 배열의 하위 배열에 해당하는 두 세트의 평균 근을 얻기 위한 비간섭성 신호 부분 공간 방법과 Root-MUSIC의 아이디어를 참조합니다. 그리고 두 개의 수직 선형 배열 사이의 기하학적 관계를 사용하여 두 개의 평균근에 대한 DOA 추정의 표현을 유도합니다. 제안된 방법에서는 DOA 추정 표현식에서 음속 변수를 제거할 수 있다. 시뮬레이션 결과는 제안된 방법이 미지의 음속 환경에서 다른 방법보다 더 정확하고 견고하다는 것을 보여줍니다.
Gengxin NING
South China University of Technology,Ministry of Natural Resources
Yushen LIN
South China University of Technology
Shenjie JIANG
South China University of Technology
Jun ZHANG
South China University of Technology
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부
Gengxin NING, Yushen LIN, Shenjie JIANG, Jun ZHANG, "An Underwater DOA Estimation Method under Unknown Acoustic Velocity with L-Shaped Array for Wide-Band Signals" in IEICE TRANSACTIONS on Fundamentals,
vol. E105-A, no. 9, pp. 1289-1297, September 2022, doi: 10.1587/transfun.2021EAP1152.
Abstract: The performance of conventional direction of arrival (DOA) methods is susceptible to the uncertainty of acoustic velocity in the underwater environment. To solve this problem, an underwater DOA estimation method with L-shaped array for wide-band signals under unknown acoustic velocity is proposed in this paper. The proposed method refers to the idea of incoherent signal subspace method and Root-MUSIC to obtain two sets of average roots corresponding to the subarray of the L-shaped array. And the geometric relationship between two vertical linear arrays is employed to derive the expression of DOA estimation with respect to the two average roots. The acoustic velocity variable in the DOA estimation expression can be eliminated in the proposed method. The simulation results demonstrate that the proposed method is more accurate and robust than other methods in an unknown acoustic velocity environment.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/transfun.2021EAP1152/_p
부
@ARTICLE{e105-a_9_1289,
author={Gengxin NING, Yushen LIN, Shenjie JIANG, Jun ZHANG, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={An Underwater DOA Estimation Method under Unknown Acoustic Velocity with L-Shaped Array for Wide-Band Signals},
year={2022},
volume={E105-A},
number={9},
pages={1289-1297},
abstract={The performance of conventional direction of arrival (DOA) methods is susceptible to the uncertainty of acoustic velocity in the underwater environment. To solve this problem, an underwater DOA estimation method with L-shaped array for wide-band signals under unknown acoustic velocity is proposed in this paper. The proposed method refers to the idea of incoherent signal subspace method and Root-MUSIC to obtain two sets of average roots corresponding to the subarray of the L-shaped array. And the geometric relationship between two vertical linear arrays is employed to derive the expression of DOA estimation with respect to the two average roots. The acoustic velocity variable in the DOA estimation expression can be eliminated in the proposed method. The simulation results demonstrate that the proposed method is more accurate and robust than other methods in an unknown acoustic velocity environment.},
keywords={},
doi={10.1587/transfun.2021EAP1152},
ISSN={1745-1337},
month={September},}
부
TY - JOUR
TI - An Underwater DOA Estimation Method under Unknown Acoustic Velocity with L-Shaped Array for Wide-Band Signals
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 1289
EP - 1297
AU - Gengxin NING
AU - Yushen LIN
AU - Shenjie JIANG
AU - Jun ZHANG
PY - 2022
DO - 10.1587/transfun.2021EAP1152
JO - IEICE TRANSACTIONS on Fundamentals
SN - 1745-1337
VL - E105-A
IS - 9
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - September 2022
AB - The performance of conventional direction of arrival (DOA) methods is susceptible to the uncertainty of acoustic velocity in the underwater environment. To solve this problem, an underwater DOA estimation method with L-shaped array for wide-band signals under unknown acoustic velocity is proposed in this paper. The proposed method refers to the idea of incoherent signal subspace method and Root-MUSIC to obtain two sets of average roots corresponding to the subarray of the L-shaped array. And the geometric relationship between two vertical linear arrays is employed to derive the expression of DOA estimation with respect to the two average roots. The acoustic velocity variable in the DOA estimation expression can be eliminated in the proposed method. The simulation results demonstrate that the proposed method is more accurate and robust than other methods in an unknown acoustic velocity environment.
ER -