AEROSPACE CHINA

中国航天科技集团有限公司主管

中国航天系统科学与工程研究院主办

ISSN 1671-0940

CN 11-4673/V

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AEROSPACE CHINA ›› 2018, Vol. 19 ›› Issue (4): 38-43.doi: 10.3969/j.issn.1671-0940.2018.04.004

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Reconstructing Sound Speed Profiles with Sea Surface Data

  

  • 出版日期:2018-11-28 发布日期:2019-12-02

Reconstructing Sound Speed Profiles with Sea Surface Data

  1. School of Information Science and Engineering, Harbin Institute of Technology (Weihai),Weihai 264209
  • Online:2018-11-28 Published:2019-12-02
  • About author:CHEN Cheng (1991- ) received his Ph.D. degree in underwater acoustic engineering from the Northwestern Polytechnical University, Xi’an, China, in 2018. In September 2018, he joined the Faculty of Electromagnetic Field and Radio Technology, Harbin Institute of Technology, Weihai, China, as a lecturer. His current research interests include acoustic signal processing, ocean acoustics and the ocean remote sensing.

Abstract:  Ocean sound speed profile (SSP) is the key factor affecting acoustic propagation. The acquisition of SSPs in real time with high precision is meaningful for underwater activities. By means of the remote sensing method, the sea surface data could be obtained in near-real time. Typically, the subsurface fields are correlated with the sea surface parameters. Thus, the SSPs could be obtained by means of satellite remote sensing. In this paper, the history as well as the current research over the reconstruction of subsurface fields by means of sea surface data is introduced. Then two methods to reconstruct the SSPs with sea surface data, including the linear regression method using the empirical orthogonal function, and the self-organizing method based on the big data theory, are described in detail in the paper.