Mine detection by thermographic image utilizing finite element method.

Autor: Shibib, Khalid Salem, Younis, Sudad Essam
Předmět:
Zdroj: AIP Conference Proceedings; 2024, Vol. 3229 Issue 1, p1-8, 8p
Abstrakt: The detection of buried mines in soil using thermographic images was earlier investigated in many previous works and is employed here with a finite element methodology where the temperature of the soil with and without mine has been determined. A transient axis-symmetry heat equation that model the heat transfer in soil is solved numerically where the effects of environment such as sun, wind and evaporation loss were imposed as boundary conditions. The basic idea of the finite element method (FEM) is based on using Galerkin method on which the boundary conditions were imposed resulting on system of ordinary equations in a matrix form that solved by a band solver in each time step. This method results in obtaining the temperatures distribution in the soil with and without mine. By comparing these temperatures, one can determine whether the ground contains mine or not. This work determined that this technique is efficient in detecting mines buried at depths less than 10 cm, as demonstrated by experiments of earlier works where the temperature of soil containing mine seems to be greater than the temperature of fresh soil (without mine) and this difference is clear in depths less than 10 cm. The thermal images of the area can show temperature differences between fresh soil some distance from the mine and the soil temperature above the mine, this temperature difference can indicate the presence of the mine or not. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index