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- W4251305754 abstract "The seismo-acoustic methods are among the most promising emerging techniques for the detection of landmines. Numerous field tests have demonstrated that buried landmines manifest themselves at the surface through linear and nonlinear responses (or signatures) to acoustic/seismic excitation at the frequencies below 1000 Hz. The linear signatures are due to lower impedance of soil above softer mine, especially in the vicinity of mines resonance. The nonlinear signatures are explained by high contact nonlinearity at the mine–soil interface. These phenomena are utilized in high provability/low false alarm detection methods pioneered by University of Mississippi (linear detection) and Stevens Institute of Technology (nonlinear detection). A simple mass-spring model of the mine-soil system [Donskoy et al., J. Acoust. Soc. Am. (2002)] explains and provides an analytical tool for analysis and prediction of both: linear and nonlinear signatures with respect to depths, soil, and mine types. This presentation provides an overview of theoretical and experimental investigations conducted at Stevens over the last 4 years with the emphasis on nonlinear detection techniques. Among major accomplishments are discovery and explanation of mines resonance behavior; soil/depth effect on buried mines resonances; discovery and analysis of nonlinear acoustic interactions at the soil–mine interface; and development of nonlinear quadratic and intermodulation detection algorithms based on dual-frequency excitation." @default.
- W4251305754 created "2022-05-12" @default.
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- W4251305754 date "2004-05-01" @default.
- W4251305754 modified "2023-09-27" @default.
- W4251305754 title "Nonlinear seismo‐acoustic landmine detection" @default.
- W4251305754 doi "https://doi.org/10.1121/1.4780300" @default.
- W4251305754 hasPublicationYear "2004" @default.
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