Museums Security System Using Electromagnetic Identification algorithm of Antiquities

摘要

The time domain scattered field response of a targeted object has been observed to be composed of an early-time forced period followed immediately by a late-time period during which the target reflected/scattered signal oscillates freely. One of the main merits of the conducting objects is that the natural modes of the target do not depend on the scattering angle. On contradictory to the dielectric objects it depends mainly on the incident and scattered angles. The late-time portion can be decomposed into a finite sum of damped sinusoids that are oscillating at frequencies determined purely by target properties which is called object natural E-pulse print. This is useful in identifying original historical antiquates in museums. The E-pulse technique is effectively used in such cases. In this paper, convoluted E-pulse technique is utilized to identify metallic as well as non metallic original antiquities. Numerical algorithm is designated and coded while experimental tests reveal promising identification results for several objects.