Characterization of Rectangular Plates using Complex Natural Resonance

The practicality of extracting natural resonant modes from the late-time target responses of conducting rectangular plates with various length-to-width ratios is studied using the matrix pencil method. The extracted resonant modes follow a similar behavior as the results obtained from a theoretical analysis reported in the literature. Our results show that it is feasible for these modes to be excited using a practical system, which opens the opportunities for automated target recognition.