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Horizontal Correlation of Ambient Noise near a Sea Route |
| HE Li 1;LI Zheng-Lin1,2;ZHANG Ren-He1; PENG Zhao-Hui1 |
| 1National Laboratory of Acoustics, Institute of Acoustics, Chinese Academy of Sciences, Beijing 1000802Nanhai Laboratory of Acoustics, Institute of Acoustics, Chinese Academy of Sciences, Haikou 570206 |
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| Cite this article: |
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HE Li, LI Zheng-Lin, ZHANG Ren-He et al 2008 Chin. Phys. Lett. 25 582-585 |
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Abstract Ambient noise data measured in an experiment conducted near the sea route are analysed. It is found that at low frequency, the measured horizontal correlation coefficients at different separations oscillate much larger than
that predicted by the classical ambient noise model. The theoretical analyses show that the observed phenomenon is mainly caused by windy noise together with the discrete shipping noise nearby. An ambient noise model is proposed to include the effects caused by both the noise sources and can be used to forecast the ambient noise field near a sea route.
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| Keywords:
43.30.Nb
43.30.Re
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Received: 14 June 2007
Published: 30 January 2008
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| PACS: |
43.30.Nb
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(Noise in water; generation mechanisms and characteristics of the field)
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43.30.Re
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(Signal coherence or fluctuation due to sound propagation/scattering in the ocean)
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[8] Li Z L and Zhang R H 2007 Chin. Phys. Lett. 24471 |
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