Enhanced GPR Signal for Layered Media Time-Delay Estimation in Low-SNR Scenario

被引:17
作者
Li, Jianzhong [1 ,2 ]
Le Bastard, Cedric [3 ,4 ]
Wang, Yide [2 ]
Wei, Gang [1 ]
Ma, Biyun [1 ]
Sun, Meng [2 ]
机构
[1] S China Univ Technol, Sch Elect & Informat Engn, Guangzhou 510640, Guangdong, Peoples R China
[2] Polytech Nantes, Inst Elect & Telecommun Rennes, CNRS, UMR 6164, F-44306 Nantes, France
[3] Cerema, F-49136 Les Ponts De Ce, France
[4] LUNAM Univ Nantes IETR, Polytech Nantes, CNRS, UMR 6164, F-44306 Nantes, France
基金
中国国家自然科学基金;
关键词
Compressive sensing (CS); ground penetrating radar (GPR); signal enhancement; time-delay estimation (TDE); GROUND-PENETRATING RADAR; DECONVOLUTION;
D O I
10.1109/LGRS.2015.2502662
中图分类号
P3 [地球物理学]; P59 [地球化学];
学科分类号
0708 ; 070902 ;
摘要
In this letter, a new method is proposed to enhance the ground-penetrating radar (GPR) signal for time-delay estimation in a low signal-to-noise ratio. It is based on a subspace method and a clustering technique. The proposed method makes it possible to improve the estimation accuracy in a noisy context. It is used with a compressive sensing method to estimate the time delay of layered media backscattered echoes coming from the GPR signal. Several simulations and an experiment are presented to show the effectiveness of signal enhancement.
引用
收藏
页码:299 / 303
页数:5
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