GLOBAL TERRORISM AS A SERIOUS THREAT TO CIVILIAN POPULATION

Abstract

To monitor change of presence, location, shape also small magnetized
and paramagnetic objects can be in the Earth's magnetic field, as well as in the
local magnetic field. The basic condition of using magnetometry when solving
tasks is the magnetic contrast of single objects towards surroundings.
The contribution shows the possibility of identifying cyclic and acyclic
movements in the area 6x6x4m (standard office space). For measurement was used
triaxial magnetometer with a sensitivity of 2 nT and range 0-250Hz. The
evaluation was carried out in time and frequency area.
The subject of experiment was monitoring interactions by sources in
defined area. Dependence of distance and induction of selected objects was
monitored. Monitored area wasn't magnetically shielded and therefore was also
monitored potential effect by other sources outside of the monitored space.