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Sea trial of flow noise of fiber laser hydrophone array
Hao, Ge-Yang1; Li, Qi1; Liu, Bo1; Liu, Wei1; Wu, Guo-Jun1,2
Conference NameInternational Symposium on Optoelectronic Technology and Application 2018: Advanced Laser Technology and Applications, OTA 2018
Source PublicationAdvanced Laser Technology and Applications
Conference Date2018-05-22
Conference PlaceBeijing, China
Contribution Rank1
AbstractTowed linear array array based on fiber laser hydrophone which had much research potentiality owing to its higher acoustic pressure sensitivity, smaller size and lower difficulty of multiplexing. Flow noise is one of the main sources of noise in the towed linear array system. It will compress the dynamic range of fiber laser hydrophone and reduce the detection ability to small signal. In this paper, the structure of a 4 channel fiber laser hydrophone towed linear array was presented, and the data of sea trial of flow noise was analyzed. The results shows that the influence of flow noise mainly concentrate on the low frequency band which under 500Hz, and the background noise level has increased nearly 70-80dB when the array is towed at the speed of 3 kn. © 2018 SPIE.
Indexed ByEI
EI Accession Number20185206303318
Citation statistics
Document Type会议论文
Affiliation1.Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China;
2.Qingdao National Laboratory for Marine Science and Technology, Qingdao; 266237, China
Recommended Citation
GB/T 7714
Hao, Ge-Yang,Li, Qi,Liu, Bo,et al. Sea trial of flow noise of fiber laser hydrophone array[C]:SPIE,2018.
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