A Multiple Migration and Stacking Algorithm Designed for Land Mine Detection

John Schofield, David Daniels, Paul Hammerton

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)
6 Downloads (Pure)

Abstract

This paper describes a modification to a standard migration algorithm for land mine detection with a ground-penetrating radar (GPR) system. High directivity from the antenna requires a significantly large aperture in relation to the operating wavelength, but at the frequencies of operation of GPR, this would result in a large and impractical antenna. For operator convenience, most GPR antennas are small and exhibit low directivity and a wide beamwidth. This causes the GPR image to bear little resemblance to the actual target scattering centers. Migration algorithms attempt to reduce this effect by focusing the scattered energy from the source reflector and consequentially improve the target detection rate. However, problems occur due to the varying operational conditions, which result in the migration algorithm requiring vastly different calibration parameters. In order to combat this effect, this migration scheme stacks multiple versions of the same migrated data with different velocity values, whereas some other migration schemes only use a single velocity value.
Original languageEnglish
Pages (from-to)6983-6988
Number of pages6
JournalIEEE Transactions on Geoscience and Remote Sensing
Volume52
Issue number11
Early online date12 Mar 2014
DOIs
Publication statusPublished - 12 Mar 2014

Keywords

  • Detectors
  • Diffraction
  • Ground penetrating radar
  • Landmine detection
  • Scattering
  • Stacking
  • Land mine detection
  • reverse time migration

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