All-fiber acoustic-posture integrated towed linear array based on fiber laser hydrophone

Junpeng Zhao; Yong Yang; Chen Zhao; Baichao Zheng; Xuefeng Wang; Zhenyang Ding

doi:10.1117/12.3007864

18 December 2023 All-fiber acoustic-posture integrated towed linear array based on fiber laser hydrophone

Junpeng Zhao, Yong Yang, Chen Zhao, Baichao Zheng, Xuefeng Wang, Zhenyang Ding

Proceedings Volume 12968, AOPC 2023: Optic Fiber Gyro ; 129681R (2023) https://doi.org/10.1117/12.3007864
Event: Applied Optics and Photonics China 2023 (AOPC2023), 2023, Beijing, China

Abstract

The impact of attitude deformation of towed linear array and the fitting error of point attitude sensors on beamforming. We studied All-fiber acoustic-posture integrated towed linear array based on distributed feedback fiber laser (DFB-FL) hydrophone and optical frequency domain reflectometry (OFDR) distributed attitude measurement. Analyzed the principle of towed array direction finding, and the influence of towed array attitude deformation on directional error was analyzed. Designed an 8-element hydrophone towed linear array structure with a diameter of 16mm, effectively combining fiber laser hydrophones with attitude sensing multi-core optical fiber. Finally, the effectiveness of attitude correction was verified through static direction finding experiments in anechoic tank, and the accuracy of direction finding was better than 2° under the extreme "S-bend" shape conditions of the drag array attitude. It can effectively improve the accuracy of direction finding.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Junpeng Zhao, Yong Yang, Chen Zhao, Baichao Zheng, Xuefeng Wang, and Zhenyang Ding "All-fiber acoustic-posture integrated towed linear array based on fiber laser hydrophone", Proc. SPIE 12968, AOPC 2023: Optic Fiber Gyro , 129681R (18 December 2023); https://doi.org/10.1117/12.3007864

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available