Transactions of the Korean Society for Noise and Vibration Engineering (한국소음진동공학회논문집)

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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A Study on the Low-frequency Active Echo Reduction Technology for Reducing Underwater Target Echo Signal

수중 표적 신호 방해를 위한 저주파 능동 반향음 감소 기술 연구

  • Received : 2016.10.13
  • Accepted : 2016.12.29
  • Published : 2017.02.20
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Abstract

Acoustic tiles are typically installed on the surface of pressure vessels in submarines to minimize echoes based on the ship's own noise and active sonar. In this study, we studied low frequency active echo reduction techniques to reduce underwater target echo signals. Active control algorithms using tile type projectors and FxLMS logic have been developed and the projectors have been installed in the assumed hull structure. The effectiveness of projectors and control algorithms has been evaluated in time and frequency domain analysis through experiments in the tank.

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References

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