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K pulse estimation and target identification of low q radar targets

Sayan, Gönül
An approximate K-pulse waveform is synthesized for a perfectly conducting sphere using a theoretically-generated back-scattered impulse response of the target. The complex natural resonance (CNR) frequencies of the sphere are extracted as zeros of the K-pulse spectrum. The synthesized K-pulse is an aspect and polarization independent descriptor of the sphere, and use of this property in radar target identification is demonstrated for several examples. This study is pertinent because of the need to understand the problems encountered in target identification of low-Q radar targets. The next generation of targets will most assuredly appear to be low-Q structures.