A Novel FDTD-Based 3-D RTM Imaging Method for GPR Working on Dispersive Medium

被引：12

作者：

Wu, Yuxuan ^{[1
]}

Shen, Feng ^{[1
]}

Zhang, Minghao ^{[1
]}

Miao, Yongfei ^{[1
]}

Wan, Tong ^{[1
]}

Xu, Dingjie ^{[1
]}

机构：

[1] Harbin Inst Technol, Sch Instrumentat Sci & Engn, Harbin 150001, Peoples R China

来源：

IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING | 2022年 / 60卷

基金：

中国国家自然科学基金;

关键词：

Imaging; Soil; Time-domain analysis; Radar imaging; Time-frequency analysis; Finite difference methods; Switches; Constitutive relationship; ground-penetrating radar (GPR); reverse time migration (RTM); stepped frequency continuous wave (SFCW) radar; REVERSE-TIME MIGRATION; ABSORBING BOUNDARY-CONDITIONS; DIELECTRIC-PROPERTIES; STABILITY ANALYSIS; WAVE-PROPAGATION;

D O I：

10.1109/TGRS.2022.3191654

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：

Nowadays, benefiting from its strong capability of nondestructive detection, the ground-penetrating radar (GPR) has been applied to detect and reconstruct underground targets and has drawn lots of attention both in military and civilian fields. However, in the processing of GPR imaging, due to the dispersion errors caused by random distribution of various particles in soil, conventional imaging methods have disadvantages of low signal-noise ratio (SNR), low resolution, and unbalanced amplitude. In this article, to achieve high resolution and high veracity on underground targets' 3-D reconstruction, we improved the conventional reverse time migration (RTM) algorithm in perspective of medium constitutive relationship. Besides, we extended the improved RTM method in 3-D environments and reconstructed the 3-D structure of several underground targets. To make the RTM algorithm suitable for stepped frequency continuous wave (SFCW) GPR system, we generated three excitation signal models and analyzed the effect of different excitation signals on imaging performance. Finally, through the quantitative analysis of simulation and on-vehicle experimental results, we found that the 3-D images generated by improved RTM method had higher resolution, smaller measurement error, and higher veracity than those of conventional RTM method.

引用

页数：13

共 34 条

[1] Reverse-Time Migration from Rugged Topography to Image Ground-Penetrating Radar Data in Complex Environments [J].

Bradford, John H. ;

Privette, Janna ;

Wilkins, David ;

Ford, Richard .

ENGINEERING, 2018, 4 (05) :661-666

[2] A Large Comparison of Feature-Based Approaches for Buried Target Classification in Forward-Looking Ground-Penetrating Radar [J].

Camilo, Joseph A. ;

Collins, Leslie M. ;

Malof, Jordan M. .

IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING, 2018, 56 (01) :547-558

[3] Novel FDTD Scheme for Analysis of Frequency-Dependent Medium Using Fast Inverse Laplace Transform and Prony's Method [J].

Chakarothai, Jerdvisanop .

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 2019, 67 (09) :6076-6089

[4] ABSORBING BOUNDARY-CONDITIONS FOR NUMERICAL-SIMULATION OF WAVES [J].

ENGQUIST, B ;

MAJDA, A .

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 1977, 74 (05) :1765-1766

[5]

FISCHER G, 2008, HARM WORLD SOIL DAT

[6] EVALUATION OF ERRORS INDUCED BY SOIL DIELECTRIC MODELS FOR SOIL MOISTURE RETRIEVAL AT L-BAND [J].

Guo, Peng ;

Shi, Jiancheng ;

BoGao ;

HongWan .

2016 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS), 2016, :1679-1682

[7] Dispersion and Stability Analysis for TLM Unstructured Block Meshing [J].

Ijjeh, Abdelrahman A. ;

Cueille, Marylene ;

Dubard, Jean-Lou ;

Ney, Michel M. .

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 2021, 69 (10) :4352-4365

[8] Piecewise linear recursive convolution for dispersive media using FDTD [J].

Kelley, DF ;

Luebbers, RJ .

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 1996, 44 (06) :792-797

[9] Coherent Integration Algorithm for a Maneuvering Target With High-Order Range Migration [J].

Kong, Lingjiang ;

Li, Xiaolong ;

Cui, Guolong ;

Yi, Wei ;

Yang, Yichuan .

IEEE TRANSACTIONS ON SIGNAL PROCESSING, 2015, 63 (17) :4474-4486

[10] Highly accurate Debye models for normal and malignant breast tissue dielectric properties at microwave frequencies [J].

Lazebnik, Mariya ;

Okoniewski, Michal ;

Booske, John H. ;

Hagness, Susan C. .

IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, 2007, 17 (12) :822-824

← 1 2 3 4 →