A Passive Ranging Method for Shallow Water Sound Sources Based on Large Aperture Horizontal Array

CHEN Yawei; XING Mengdao; WANG Jun; YANG Yuhao

doi:10.11999/JEIT211111

Volume 44 Issue 12

Dec. 2022

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Article Navigation > Journal of Electronics & Information Technology > 2022 > 44(12): 4125-4133

CHEN Yawei, XING Mengdao, WANG Jun, YANG Yuhao. A Passive Ranging Method for Shallow Water Sound Sources Based on Large Aperture Horizontal Array[J]. Journal of Electronics & Information Technology, 2022, 44(12): 4125-4133. doi: 10.11999/JEIT211111

Citation:

CHEN Yawei, XING Mengdao, WANG Jun, YANG Yuhao. A Passive Ranging Method for Shallow Water Sound Sources Based on Large Aperture Horizontal Array[J]. Journal of Electronics & Information Technology, 2022, 44(12): 4125-4133. doi: 10.11999/JEIT211111

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A Passive Ranging Method for Shallow Water Sound Sources Based on Large Aperture Horizontal Array

doi: 10.11999/JEIT211111

CHEN Yawei^{1, 2, 3, 4
,
,},
XING Mengdao^{1, 2},
WANG Jun¹,
YANG Yuhao^{3, 4}

1.
National Laboratory of Radar Signal Processing, Xidian University, Xi’an 710071, China
2.
Collaborative Innovation Center of Information Sensing and Understanding, Xidian University, Xi’an 710071, China
3.
Nanjing Research Institute of Electronics Technology, Nanjing 210039, China
4.
Key Laboratory of IntelliSense Technology, CETC, Nanjing 210039, China

Received Date: 2021-10-11
Rev Recd Date: 2022-05-14

Available Online: 2022-05-20

Publish Date: 2022-12-16

Abstract

Abstract

In order to meet the demand for passive ranging of sound sources in shallow water, a normal mode separation and ranging method based on a large-aperture horizontal array is proposed. This method deals with the problem of modal separation that caused by the bending of the modal curve in the frequency-wavenumber domain. Under the condition that the cut-off frequency of each order normal mode does not change with the signal frequency, a alignment method based on wavenumber scaling is presented to realize the effective separation of normal modes. The energy focusing of normal modes is realized by nonlinear phase compensation, and the passive ranging of the sound source is realized by combining distance traversal and peak extraction. This method can effectively achieve gains in space and frequency domains, and obtain multi-modal energy accumulation, which provides a new approach for the distance estimation of weak sound sources. The effectiveness of the method is verified by simulation data.
- Large aperture array,
- Passive ranging,
- Wavenumber scaling,
- Normal mode separation

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References(17)

References

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