Elastic waves interacting with buried land mines: a study using the FDTD method

Author

Schröder, Christoph T. ; Scott, Waymond R., Jr. ; Larson, Gregg D.

Author_Institution

Sch. of Electr. & Comput. Eng., Georgia Inst. of Technol., Atlanta, GA, USA

Volume

40

Issue

6

fYear

2002

fDate

6/1/2002 12:00:00 AM

Firstpage

1405

Lastpage

1415

Abstract

A three-dimensional (3-D) finite-difference model for elastic waves in the ground has been developed and implemented. The model has been created to supplement the development of a sensor that uses elastic waves to detect buried land mines. The model is used to investigate the propagation characteristics of elastic waves in the ground and to explore the interaction of elastic waves with buried land mines. When elastic waves interact with a buried mine, a strong resonance occurs at the mine location. The resonance can be used to enhance the mine´s signature and to distinguish the mine from clutter. Results presented in this paper explain the features of elastic wave propagation in the ground and show the interaction of elastic waves with both an anti-personnel mine and an anti-tank mine.

Keywords

buried object detection; elastic waves; finite difference time-domain analysis; resonance; seismology; weapons; FDTD method; anti-personnel mine; anti-tank mine; buried land mines; clutter; elastic waves; propagation characteristics; resonance; sensor; three-dimensional finite-difference model; Boundary conditions; Electromagnetic propagation; Finite difference methods; Landmine detection; Numerical models; Partial differential equations; Radar detection; Resonance; Sensor phenomena and characterization; Time domain analysis;

fLanguage

English

Journal_Title

Geoscience and Remote Sensing, IEEE Transactions on

Publisher

ieee

ISSN

0196-2892

Type

jour

DOI

10.1109/TGRS.2002.800435

Filename

1020272