Research Progress on Interferometric Fiber Optic Hydrophone Signal Demodulation Algorithm

LIANG Qiumin; WANG Min; WANG Wenxia; WANG Ke; ZHENG Huifeng

doi:10.12338/j.issn.2096-9015.2023.0293

Volume 67 Issue 11

Nov. 2023

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Article Navigation > Metrology Science and Technology > 2023 > 67(11): 17-23, 78

LIANG Qiumin, WANG Min, WANG Wenxia, WANG Ke, ZHENG Huifeng. Research Progress on Interferometric Fiber Optic Hydrophone Signal Demodulation Algorithm[J]. Metrology Science and Technology, 2023, 67(11): 17-23, 78. doi: 10.12338/j.issn.2096-9015.2023.0293

Citation:

LIANG Qiumin, WANG Min, WANG Wenxia, WANG Ke, ZHENG Huifeng. Research Progress on Interferometric Fiber Optic Hydrophone Signal Demodulation Algorithm[J]. Metrology Science and Technology, 2023, 67(11): 17-23, 78. doi: 10.12338/j.issn.2096-9015.2023.0293

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Research Progress on Interferometric Fiber Optic Hydrophone Signal Demodulation Algorithm

doi: 10.12338/j.issn.2096-9015.2023.0293

LIANG Qiumin^{1, 2
,},
WANG Min^{2
,
,},
WANG Wenxia²,
WANG Ke²,
ZHENG Huifeng¹

1.
College of Metrology & Measurement Engineering, China Jiliang University, Hangzhou 310018, China
2.
National Institute of Metrology, Beijing 100029, China

Received Date: 2023-11-20
Accepted Date: 2023-12-08
Rev Recd Date: 2023-12-09

Available Online: 2023-12-15

Publish Date: 2023-11-18

Abstract

Abstract

Interferometric fiber optic hydrophones represent a novel class of hydrophones offering numerous benefits over traditional devices. The accuracy in capturing underwater acoustic signals is intricately linked to the employed demodulation algorithms. This paper briefly outlines the construction and operational principles of these hydrophones, with a focus on comparing and analyzing the principles and developments of demodulation algorithms, particularly the Phase Generated Carrier (PGC) and the 3×3 coupler approaches. It delineates the attributes, strengths, and limitations of these primary demodulation algorithms and proposes potential avenues for future research.
- metrology,
- interferometric fiber-optic hydrophone,
- phase-generated carrier,
- couplers,
- ellipse parameter estimation

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References(31)

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