IEICE TRANSACTIONS on Fundamentals
An Underwater DOA Estimation Method under Unknown Acoustic Velocity with L-Shaped Array for Wide-Band Signals
Summary :
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.
- Publication
- IEICE TRANSACTIONS on Fundamentals Vol.E105-A No.9 pp.1289-1297
- Publication Date
- 2022/09/01
- Publicized
- 2022/03/09
- Online ISSN
- 1745-1337
- DOI
- 10.1587/transfun.2021EAP1152
- Type of Manuscript
- PAPER
- Category
- Digital Signal Processing
Authors
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
Keyword
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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
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@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},}
Copy
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 -
English
