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中文核心期刊

Volume 49 Issue 4
Jul.  2024
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XU Yanwei, XUE Meng, GU Haoxiang, LIU Minggang, HOU Chaohuan. Modeling and detection performance analysis of target echoes coupled with shallow water acoustic channels[J]. ACTA ACUSTICA, 2024, 49(4): 719-730. DOI: 10.12395/0371-0025.2023226
Citation: XU Yanwei, XUE Meng, GU Haoxiang, LIU Minggang, HOU Chaohuan. Modeling and detection performance analysis of target echoes coupled with shallow water acoustic channels[J]. ACTA ACUSTICA, 2024, 49(4): 719-730. DOI: 10.12395/0371-0025.2023226
shu

Modeling and detection performance analysis of target echoes coupled with shallow water acoustic channels

  • 1.

    Institute of Acoustics, Chinese Academy of Sciences　Beijing　100190

  • 2.

    University of Chinese Academy of Sciences　Beijing　100049

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  • PACS: 
      43.60,43.30
  • Received Date: September 12, 2023
  • Revised Date: November 26, 2023
    Graphical Abstract
    • Abstract

  • To improve the detection performance of extended targets in shallow water, the model of extended target echoes coupled with shallow water acoustic channels is modeled using the shallow water acoustic channel model and the multi-highlight model. The theoretical results of replica correlation integration (RCI) detection for extended target echoes coupled with shallow water acoustic channels are provided. The RCI detection performances under different shallow water conditions are analyzed by simulation methods using the linear frequency modulation (LFM) waveform with the bandwidth being 50 Hz, 100 Hz, 500 Hz and 1000 Hz respectively. The results show that the sea depth, the sonar depth, the target position and the waveform bandwidth all have influences on the expansion characteristics and the RCI detection performances of shallow water target echoes. The suitable sonar depth and waveform bandwidth may improve the detection performance of extended targets in shallow water.

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    • References (21)
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