By Jacqueline A. MacDonald, J. R. Lockwood
Analyzes the advantages and disadvantages of latest applied sciences in landmine detection and provides suggestions for bettering and dashing up the method.
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Additional info for Alternatives for Landmine Detection
3). The category encompasses technologies of diverse modes of action, including active and passive irradiation using a broad range of electromagnetic wavelengths. Thermal detection methods exploit diurnal variations in temperatures of areas near mines relative to surrounding areas. com. NOTE: The left pane shows the infrared image, while the right pane shows the visible image. 3—Infrared Image of Mines mines or the soil above them tend to be warmer than surrounding areas during the day but lose heat more quickly at night.
1996). , 2001). The casing may be made of plastic, wood, or sheet metal. Plastic-encased blast mines are sometimes referred to as “nonmetallic mines,” but nearly SOURCE: Ackenhusen et al. (2001). , 1996). 3) throw fragments radially outward at high speeds. , 2001). One type of fragmentation mine, known as the “bounding” mine, is buried underground but is propelled upward when activated and explodes a meter above ground, sending lethal fragments in a wide radius. Other types of fragmentation mines are mounted on stakes in the ground or on tree trunks.
4 –5 x 10 5 Amplitude (m/s) Mine 4 Blank 3 2 1 120 170 220 270 Frequency (Hz) SOURCE: Rosen et al. (2000). 4—Amplitude of Surface Vibration of Ground over a Mine (solid line) and a Blank (dashed line) in Response to Sound Waves 28 Alternatives for Landmine Detection mines and several hundred square meters of clutter locations at Army field sites in Virginia and Arizona (see Appendix G). Initial tests focused on antitank mines and yielded high probabilities of detection and low false alarm rates.
Alternatives for Landmine Detection by Jacqueline A. MacDonald, J. R. Lockwood