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基于标签传播算法的海面漂浮小目标检测方法

许述文 茹宏涛

许述文, 茹宏涛. 基于标签传播算法的海面漂浮小目标检测方法[J]. 电子与信息学报, 2022, 44(6): 2119-2126. doi: 10.11999/JEIT210382
引用本文: 许述文, 茹宏涛. 基于标签传播算法的海面漂浮小目标检测方法[J]. 电子与信息学报, 2022, 44(6): 2119-2126. doi: 10.11999/JEIT210382
Xu Shuwen, Ru Hongtao. Small Target Detection on Sea Surface Based on Label Propagation Algorithm[J]. Journal of Electronics & Information Technology, 2022, 44(6): 2119-2126. doi: 10.11999/JEIT210382
Citation: Xu Shuwen, Ru Hongtao. Small Target Detection on Sea Surface Based on Label Propagation Algorithm[J]. Journal of Electronics & Information Technology, 2022, 44(6): 2119-2126. doi: 10.11999/JEIT210382

基于标签传播算法的海面漂浮小目标检测方法

doi: 10.11999/JEIT210382
基金项目: 国家自然科学基金(61871303, 62071346),高等学校学科创新引智计划(111计划)(B18039)
详细信息
    作者简介:

    许述文:男,1985年生,教授,博士生导师,研究方向为雷达目标检测、机器学习、时频分析和SAR图像处理

    茹宏涛:男,1997年生,硕士生,研究方向为海面目标的特征检测

    通讯作者:

    许述文 swxu@mail.xidian.edu.cn

  • 中图分类号: TN957.51

Small Target Detection on Sea Surface Based on Label Propagation Algorithm

Funds: The National Natural Science Foundation of China (61871303,62071346), The Fund for Foreign Scholars in University Research and Teaching Programs (The 111 Project) (B18039)
  • 摘要: 在高分辨体制下海杂波与海面小目标具有复杂的特性,特别是对于雷达散射截面积较小的海面漂浮目标,传统的检测方法性能不佳。为了突破临界信杂比情况下的检测性能,可以提取雷达回波的一种或者多种特征,从而进行特征检测,该方法是实现临界信杂比情况下有效检测的重要途经。目前,在3维及以下的特征空间中可以使用凸包学习算法计算判决区域并有效地控制虚警概率,但是在3维以上的特征空间中凸包学习算法计算复杂度提高,难以进行检测。针对这个问题,该文提出一种基于标签传播算法的海面小目标检测方法,它突破了凸包学习算法的维数限制和决策域必须为凸集的形状限制,能够在高维特征空间进行检测并有效地控制虚警。经过实测数据集验证,基于标签传播算法的海面小目标检测方法在0.512 s和1.024 s的观测时间内分别获得了88.4%和92.0%的检测概率,相比于基于K近邻(KNN)的检测器有了3.3%和2.8%的检测概率提升。
  • 图  1  2维空间中的杂波特征与判决区域

    图  2  所提检测器流程图

    图  3  所提检测器以及其余检测器的检测概率

    图  4  不同观测时间的检测结果对比

    图  5  海航数据检测结果

    图  6  维数升高时超球体测度的变化

    图  7  三特征检测概率对比

    表  1  IPIX数据集中20组数据平均检测结果对比

    检测器观测时间(s)HHHVVHVV平均
    基于分形的检测器0.5120.2230.4040.4480.2410.329
    1.0240.3010.5360.5760.3280.435
    基于三特征的检测器0.5120.5770.7360.7760.5690.665
    1.0240.6220.7970.8130.5980.708
    基于时频三特征的检测器0.5120.7470.8260.8420.7060.780
    1.0240.8210.8820.8770.7890.842
    基于K近邻的检测器0.5120.8210.8870.8950.8000.851
    1.0240.8680.9220.9210.8580.892
    本文所提检测器0.5120.8570.9160.9180.8460.884
    1.0240.9060.9410.9380.8930.920
    下载: 导出CSV

    表  2  海航数据的信杂比(dB)

    目标回波LFM单载频
    7.3512.23
    浮标14.1613.23
    下载: 导出CSV

    表  3  去掉每一种特征时的6特征检测器性能损失(%)

    去掉的特征
    NHERAARDPHRVERIMSNR
    性能损失HH2.141.724.901.401.093.991.41
    HV1.931.342.881.130.922.421.00
    VH1.901.062.710.830.572.040.63
    VV2.521.995.121.541.024.541.59
    平均2.121.533.901.220.903.251.16
    下载: 导出CSV
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出版历程
  • 收稿日期:  2021-05-07
  • 修回日期:  2021-08-15
  • 网络出版日期:  2021-08-30
  • 刊出日期:  2022-06-21

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