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Journal of Marine Science and Application

, Volume 16, Issue 2, pp 216–224 | Cite as

Extraction of echo characteristics of underwater target based on cepstrum method

  • Hongjian Jia
  • Xiukun Li
  • Xiangxia Meng
  • Yang Yang
Article
  • 60 Downloads

Abstract

The analysis and characteristic extraction of target echo characteristics are important in underwater target detection and recognition. Rigid acoustic scattering components are generally used as major echo contributors with relatively stable characteristic information. Previous studies focus on echo characteristics from a single angle, thereby limiting the amount of extracted characteristic information. This paper aims to establish a full-angle rigid echo components model and overcome the difficulty of the extraction of time delay characteristics of narrow-band acoustic scattering echoes. On the basis of the analysis of the target echo highlight model, the echo characteristics of rigid acoustic scattering components are extracted in the cepstrum domain, and a wavelet process is proposed to enhance the effect of time delay estimation. Experimental data indicate that the extracted time delay characteristics accord with the rigid echo characteristics of underwater target, thereby validating the effectiveness of the cepstrum method.

Keywords

underwater target rigid scattering echoes time delay characteristics cepstrum wavelet enhancement echo characteristic 

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Copyright information

© Harbin Engineering University and Springer-Verlag Berlin Heidelberg 2017

Authors and Affiliations

  • Hongjian Jia
    • 1
    • 2
  • Xiukun Li
    • 1
    • 2
  • Xiangxia Meng
    • 1
    • 2
  • Yang Yang
    • 1
    • 2
  1. 1.Acoustic Science and Technology LaboratoryHarbin Engineering UniversityHarbinChina
  2. 2.College of Underwater Acoustic EngineeringHarbin Engineering UniversityHarbinChina

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