Development of hand-held dual sensor ALIS and its evaluation

Motoyuki Sato, Jun Fujiwara, Xuan Feng, Kazunori Takahashi, Takao Kobayashi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)


We are developing a new landmine detection sensor (ALIS) which is equipped with a metal detector and a GPR. Although this is a hand-held system, we can record the metal detector and GPR signal with the sensor position information. Therefore, signal processing for 2-D signal image is possible. For the metal detector, we apply cross-correlation algorism for sharpening the image and estimation of the depth of the target. For GPR signal, we can apply migration algorithm, which drastically reduce the clutter and we can obtain 3-D image of the buried targets. At first, linear interpolation and cubic interpolation are used respectively to deal with the problem of random data position. Comparing results, we find the image quality of two kinds of interpolations is almost same. Then the migration is used to refocus the scattered signals and improve the image quality for reconstructed landmine image. ALIS demonstration were held in Afghanistan in December 2004 and other countries including Egypt and Croatia in 2005. After some demonstrations and evaluation, we received many useful suggestions. Using these advises, we have modified the ALIS and it is now more easy to use. In this paper, we describe the latest characteristics of the ALIS and summarize its operation.

Original languageEnglish
Title of host publicationDetection and Remediation Technologies for Mines and Minelike Targets XI
Publication statusPublished - 2006
EventDetection and Remediation Technologies for Mines and Minelike Targets XI - Kissimmee, FL, United States
Duration: 2006 Apr 172006 Apr 21

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume6217 II
ISSN (Print)0277-786X


OtherDetection and Remediation Technologies for Mines and Minelike Targets XI
Country/TerritoryUnited States
CityKissimmee, FL


  • Dual Sensor
  • GPR
  • Hand-held
  • Landmine detection
  • Sensor tracking

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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