Time-domain cross-correlation interception processing for active sonar target depth estimation

ZHAO Meng; ZHONG Heping; TANG Jinsong; WU Haoran; REN Qunyan

doi:10.12382/bgxb.2026.0349

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Time-domain cross-correlation interception processing for active sonar target depth estimation

更新时间：2026-08-21

- Time-domain cross-correlation interception processing for active sonar target depth estimation
- Acta Armamentarii (2026)
- 作者机构：
  
  1.海军工程大学, 湖北武汉430033
  2.中国科学院声学研究所, 北京 100190
- 作者简介：
- 基金信息：
- DOI：10.12382/bgxb.2026.0349
  CLC： TB566
- Received：17 April 2026，
  
  Revised：2026-07-19，
  
  Accepted：22 July 2026，
- 稿件说明：
移动端阅览
ZHAO Meng, ZHONG Heping, TANG Jinsong, et al. Time-domain cross-correlation interception processing for active sonar target depth estimation[J/OL]. Acta Armamentarii, 2026.
DOI：

ZHAO Meng, ZHONG Heping, TANG Jinsong, et al. Time-domain cross-correlation interception processing for active sonar target depth estimation[J/OL]. Acta Armamentarii, 2026. DOI： 10.12382/bgxb.2026.0349.

摘要

针对主动声呐目标深度估计，提出一种仅利用单通道接收回波的时域互相关截取方法。该方法将单亮点散射的波导传播拷贝信号与目标多亮点散射实测回波进行互相关处理，并基于最高相关峰位置和拷贝信号长度从散射回波中截取回波片段，最后利用截取片段与拷贝信号的相干匹配获取目标深度信息。仿真结果表明，该方法在理想的多亮点散射和实测的水下潜艇模型散射下均能成功估计目标深度，可以有效抑制主动声呐目标散射对深度估计的影响，并且在环境失配及混响噪声干扰下具有较强的实用性。同时，海上实测的回声转发数据对仿真结果进行了进一步验证，目标深度估计的RMSE能够保持在3 m以内。

Abstract

This paper proposes a time-domain cross-correlation truncation method for active sonar target depth estimation

utilizing only single-channel received echoes. In this method

the waveguide propagation replica signal corresponding to single-highlight scattering is cross-correlated with the measured multi-highlight target scattering echo. Based on the position of the highest correlation peak and the length of the replica signal

an echo segment is truncated from the scattered data. Target depth is then obtained through coherent matching between the truncated segment and the replica signal. Simulation results show that the proposed method successfully estimates target depth under both ideal multi-highlight scattering and measured underwater submarine model scattering. It effectively mitigates the impact of active sonar target scattering on depth estimation

and demonstrates robust practicability in the presence of environmental mismatch and reverberation noise. Sea trial data from echo transponder further validate the simulation results

achieving a target depth estimation root mean square error within 3 m.

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Keywords

references

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