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一种适用于北极双轴声道的改进压缩匹配场定位算法研究

吕玉娇 刘崇磊 张扬帆 黄海宁

吕玉娇, 刘崇磊, 张扬帆, 黄海宁. 一种适用于北极双轴声道的改进压缩匹配场定位算法研究[J]. 电子与信息学报, 2022, 44(6): 1991-1998. doi: 10.11999/JEIT211445
引用本文: 吕玉娇, 刘崇磊, 张扬帆, 黄海宁. 一种适用于北极双轴声道的改进压缩匹配场定位算法研究[J]. 电子与信息学报, 2022, 44(6): 1991-1998. doi: 10.11999/JEIT211445
LÜ Yujiao, LIU Chonglei, ZHANG Yangfan, HUANG Haining. Research on an Improved Compressive Matched Field Localization Algorithm for Arctic Double Channels[J]. Journal of Electronics & Information Technology, 2022, 44(6): 1991-1998. doi: 10.11999/JEIT211445
Citation: LÜ Yujiao, LIU Chonglei, ZHANG Yangfan, HUANG Haining. Research on an Improved Compressive Matched Field Localization Algorithm for Arctic Double Channels[J]. Journal of Electronics & Information Technology, 2022, 44(6): 1991-1998. doi: 10.11999/JEIT211445

一种适用于北极双轴声道的改进压缩匹配场定位算法研究

doi: 10.11999/JEIT211445
基金项目: 国家重点研发计划(2021YFC2801200)
详细信息
    作者简介:

    吕玉娇:女,1995年生,博士生,研究方向为水声信号处理、阵列信号处理

    刘崇磊:男,1990年生,副研究员,研究方向为水声信号处理、阵列信号处理、水声通信

    张扬帆:女,1979年生,研究员,研究方向为水声信号处理、水声通信

    黄海宁:男,1969年生,研究员,博士生导师,研究方向为阵列信号处理、水下无线传感器网络、合成孔径声呐

    通讯作者:

    黄海宁 hhn@mail.ioa.ac.cn

  • 中图分类号: TB566

Research on an Improved Compressive Matched Field Localization Algorithm for Arctic Double Channels

Funds: The National Key Research and Development Program of China (2021YFC2801200)
  • 摘要: 北极水域信道特殊,匹配场处理作为一类可结合环境信息进行信号处理的目标定位方法,在模型匹配时可以准确估计出声源位置,但存在环境变化复杂且信息了解少的问题,导致模型很难完全匹配,从而出现位置估计不准确的问题。该文提出建立一种改进的压缩匹配场模型,并基于相位归一化原理对稀疏模型进行优化,利用归一化阵元域信息进行匹配,以消除声源频谱的影响,提高压缩匹配场的定位准确度。仿真结果表明,改进后方法比改进前方法的定位准确率更高;试验数据处理表明,单快拍下改进后方法比改进前方法在目标位置估计上误差更小,比常规匹配场方法的分辨率更高。
  • 图  1  环境仿真模型

    图  2  信噪比为0 dB情况下定位结果比较

    图  3  信噪比为5 dB情况下定位结果比较

    图  4  信噪比为14 dB情况下定位结果比较

    图  5  不同方法的定位准确度

    图  6  不同假设下统计量的概率密度分布函数

    图  7  不同快拍下的ROC曲线

    图  8  试验环境声速剖面

    图  9  上表面反射较弱情况下的传播损失

    图  10  接收信号时频图

    图  11  声源距离随时间变化情况

    图  12  不同方法的多频点处理结果

    表  1  统计误差

    信噪比(dB)估计目标常规匹配场压缩匹配场改进方法
    0距离(km)3.143.033.16
    深度(m)24.2625.6925.80
    5距离(km)1.041.671.69
    深度(m)6.3010.6910.30
    14距离(km)0.434.701.99
    深度(m)0.050.650.20
    下载: 导出CSV

    表  2  参数设置

    厚度(m)压缩波速(m/s)切向波速(m/s)密度(g/cm3)压缩波衰减(dB/(km·Hz))剪切波衰减(dB/(km·Hz))
    介质11019.450100
    沉积层20000200
    下载: 导出CSV

    表  3  估计结果比较

    测量常规匹配场压缩匹配场改进方法
    距离(km)45.701.154.10
    深度(m)457411164
    下载: 导出CSV
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出版历程
  • 收稿日期:  2021-12-06
  • 修回日期:  2022-03-28
  • 网络出版日期:  2022-04-07
  • 刊出日期:  2022-06-21

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