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基于瞬态电磁响应的埋地细长良导体目标长度和方位估计

周丽军 欧阳缮 廖桂生 晋良念

周丽军, 欧阳缮, 廖桂生, 晋良念. 基于瞬态电磁响应的埋地细长良导体目标长度和方位估计[J]. 电子与信息学报, 2017, 39(6): 1424-1431. doi: 10.11999/JEIT160718
引用本文: 周丽军, 欧阳缮, 廖桂生, 晋良念. 基于瞬态电磁响应的埋地细长良导体目标长度和方位估计[J]. 电子与信息学报, 2017, 39(6): 1424-1431. doi: 10.11999/JEIT160718
ZHOU Lijun, OUYANG Shan, LIAO Guisheng, JIN Liangnian. Estimation of Length and Orientation of Subsurface Thin-wire Structures Based on Transient Electromagnetic Responses[J]. Journal of Electronics and Information Technology, 2017, 39(6): 1424-1431. doi: 10.11999/JEIT160718
Citation: ZHOU Lijun, OUYANG Shan, LIAO Guisheng, JIN Liangnian. Estimation of Length and Orientation of Subsurface Thin-wire Structures Based on Transient Electromagnetic Responses[J]. Journal of Electronics and Information Technology, 2017, 39(6): 1424-1431. doi: 10.11999/JEIT160718

基于瞬态电磁响应的埋地细长良导体目标长度和方位估计

doi: 10.11999/JEIT160718
基金项目: 

国家自然科学基金(61371186, 61162007),广西自然科学基金(2013GXNSFFA019004)

Estimation of Length and Orientation of Subsurface Thin-wire Structures Based on Transient Electromagnetic Responses

Funds: 

The National Natural Science Foundation of China (61371186, 61162007), Guangxi Natural Science Foundation (2013GXNSFFA019004)

  • 摘要: 对地下管道电缆等目标的几何特征估计在城市建设和市政基础设施维护中尤为重要,针对此类埋地细长良导体目标,该文提出一种基于瞬态电磁响应的管道目标长度与方位角估计方法。建立了介电媒质中水平极化电磁波在布鲁斯特角入射下细长良导体目标后向散射回波时延差模型,通过分析瞬态响应时频分布,建立了其谐振态与目标长度的关系,并由此估计目标的长度。利用瞬态响应早时部分首达回波与晚时部分谐振回波的能量变化趋势,判断电磁波到达目标两端点的时间顺序,再根据首达时间延迟差估计目标的方位角。数值仿真结果表明在电场方向与目标轴线方向偏离不大的情况下,提出方法有效并且对噪声具有鲁棒性,适用于信噪比SNR5 dB的长度估计以及SNR10 dB的方位角估计。
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    出版历程
    • 收稿日期:  2016-07-07
    • 修回日期:  2016-12-15
    • 刊出日期:  2017-06-19

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