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Proceedings Paper

An experimental sonobuoy system based on fiber optic vector hydrophone
Author(s): Wen Liu; Jun Wang; Jing Zhu; Yanqun Wu; Lina Ma; Zhengliang Hu
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Paper Abstract

A sonobuoy system based on a fiber optic vector hydrophone (FOVH) is demonstrated. Phase Generated Carrier– Arctangent (PGC-ATAN) demodulation algorithm was used to acquire real-time underwater acoustic signals. After the optimal design of the laser configuration, the background noise of the FOVH is -104.3dB re radHz at 1 kHz, with an acceleration sensitivity of 41.5dB re rad/g which allows the system detecting signals at DSS0. The theoretical derivation of FOVH directivity is proposed and the design criterion is discussed. The ratio of the minimum to the maximum amplitude of the FOVH directivity is -35dB by symmetrical structure design of the FOVH. A lake trial shows that the maximum detection range of the sonobuoy system is more than 15km for an acoustic signal of 210dB re μPa, and the bearing of a moving target can be estimated.

Paper Details

Date Published: 25 October 2016
PDF: 6 pages
Proc. SPIE 10156, Hyperspectral Remote Sensing Applications and Environmental Monitoring and Safety Testing Technology, 1015608 (25 October 2016); doi: 10.1117/12.2243955
Show Author Affiliations
Wen Liu, National Univ. of Defense Technology (China)
Jun Wang, National Univ. of Defense Technology (China)
Jing Zhu, National Univ. of Defense Technology (China)
Yanqun Wu, National Univ. of Defense Technology (China)
Lina Ma, National Univ. of Defense Technology (China)
Zhengliang Hu, National Univ. of Defense Technology (China)


Published in SPIE Proceedings Vol. 10156:
Hyperspectral Remote Sensing Applications and Environmental Monitoring and Safety Testing Technology

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