What is it about?
In this paper, we revisit the impulse response of a perfectly conducting sphere from a short pulse excitation. From the basics associated with that response, we assess a novel late response turn-on time criterion that we investigate by means of simulation. In this way, we determine a better late response turn-on time criterion compared to the well-established one used in natural resonance estimation algorithms in the literature so far. The results obtained are in agreement with those expected from the theory
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Why is it important?
Intensive research is still being carried out at the present time to determine a reliable strategy that allows for the estimation of late response turn-on time for targets with arbitrary shape and orientation in non-collaborative scenarios for varied purposes. In this research, we have demonstrated that the late response turn-on time should be defined as soon as the early-time response has extinguished instead of waiting for a complete interaction of the incident pulse with a small perfect electric conductor (PEC) sphere.
Perspectives
Given the results obtained from this research, we hope to develop an algorithm for the discrimination of the early response turn-off time for non-cooperative targets regardless of their geometry and aspect angle.
Prof. Alfonso José Zozaya Sahad
Universidad Tecnologica Metropolitana
Read the Original
This page is a summary of: Some insights on the short pulse scattering from a small target. Case study: The PEC sphere revisited, AIP Advances, August 2022, American Institute of Physics,
DOI: 10.1063/5.0093635.
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