Feature Extraction from GPR Data for Identification of Landmine-Like Objects Under Rough Ground Surface

Nishimoto, Masahiko; Ueno, Syu-ichi; Kimura, Yusuke

doi:10.1163/156939306779292318

Cited by 15 publications

(13 citation statements)

References 9 publications

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“…Now that advanced 2D and 3D modeling and inversion tools are available [2], a good challenge will be the small-scale analysis of the distortions provoked by dispersion in both vertically and laterally confined structures. This new approach will make MT a more efficient tool to explore deep crustal structures with an enhanced relative resolution power, comparable with that of near-surface methods, like GPR [13,22,32,38,39], and shallow-depth methods, like geoelectrics and magnetics [16][17][18].…”

Section: Discussionmentioning

confidence: 99%

The Role of the Impedivity in the Magnetotelluric Response

Esposito¹,

Patella²

2009

PIER

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Abstract-We study the influence of the resistivity frequency dispersion effects on the magnetotelluric (MT) response. Impedivity is the term used to indicate the frequency dependent resistivity in rocks. The impedivity functions, used in this paper, have been derived from the general solution of the motion equation of a charge carrier, discussed in a previous paper. A 1D three-layered earth section, with the second layer assumed to be dispersive, is considered to analyze the distortions due to dispersion on the modulus and phase of the MT responses on the earth's free surface. The MT responses of the section, where the dispersive layer is attributed an impedivity function describing at first a positive, then a negative and finally a resonant dispersion model, are computed for various combines of the dispersion parameters. A general conclusion is that the dispersion effects can strongly influence the MT response either in recognizable or in subtle forms. In the former case, the distortions appear as either steeply rising and/or descending curve branches or spike-like deltas, not compatible with a dispersion-free section. In the latter case, instead, the MT curves preserve the typical behavior for a dispersion-free section, and may thus erroneously be modeled by a section, where the dispersive layer is totally suppressed. In both case, disregarding the distortion effects may lead to misleading conclusions as to the physical properties of the surveyed structures.

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Section: Discussionmentioning

confidence: 99%

The Role of the Impedivity in the Magnetotelluric Response

Esposito¹,

Patella²

2009

PIER

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“…In particular, they are frequently selected for landmine detection [2,[29][30][31][32][33]. In addition, an attempt to use a metal detector and a GPR together in the landmine detection has been made [34].…”

Section: Introductionmentioning

confidence: 99%

Multi-Feature Based Detection of Landmines Using Ground Penetrating Radar

Park¹,

Park²,

Kim³

et al. 2013

PIER

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Abstract-In this paper, we present a method for detecting antitank or anti-personnel landmines buried in the ground. A set of data generated by a ground penetrating radar is processed to remove the surface reflection and clutter, yielding signals for possible landmines. In order to detect landmines in the signals, features are computed and compared against a database, which contains those of various landmines. Three features are proposed to use; principal components from principal component analysis, Fourier coefficients and singular values from singular value decomposition method, each of which is chosen to represent each landmine uniquely. Detection is performed using Mahalanobis distance-based method. Examples show that the proposed method can effectively detect landmines in various burial condition.

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“…The basic principle of Synthetic Aperture Radar (SAR) has been outlined in reference [2,3]. SAR has been shown to be very useful over a wide range of applications, including target detection [4], target discrimination [5,6], target recognition [7], velocities measurement [8], identification of landmine-like objects [9,10], snow monitoring [11], classification of earth terrain [12] etc.…”

Section: Introductionmentioning

confidence: 99%

Application of Synthetic Bandwidth Approach in Sar Polar Format Algorithm Using the Deramp Technique

Nie¹,

Zhu²,

Zhu³

2008

PIER

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Abstract-The problem of wide bandwidth management in ultra-high resolution SAR systems can be solved by adopting stepped chirps and applying synthetic bandwidth approach. However, high resolution SAR image formation is a non-separable 2-D impulse compression processing, so the synthetic bandwidth procedure should be modified correspondingly with the image formation algorithm adopted. This paper demonstrates the application of synthetic bandwidth approach in SAR Polar Format Algorithm (PFA) using the deramp technique. The problem of motion compensation between the sub-pulses within a burst is discussed, and the signal processing flows are investigated in detail. The presented approach is validated by point target simulation.

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Feature Extraction from GPR Data for Identification of Landmine-Like Objects Under Rough Ground Surface

Cited by 15 publications

References 9 publications

The Role of the Impedivity in the Magnetotelluric Response

The Role of the Impedivity in the Magnetotelluric Response

Multi-Feature Based Detection of Landmines Using Ground Penetrating Radar

Application of Synthetic Bandwidth Approach in Sar Polar Format Algorithm Using the Deramp Technique

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