volume | PIER Journals

Identification of Radar Targets in Resonance Zone: E-Pulse Techniques

, Vol. 43, 39-58, 2003

doi:10.2528/PIER02100201 | Google Scholar

Abstract

Radar scattering amplitudes contain pole singularities whose importance was recognized in the context of the Singularity Expansion Method: S.E.M. This method uses the fact that the late time domain response r_t(t) of a target, illuminated by an E.M. wave, is mainly defined in a frequency band corresponding to the resonance region of the object. The knowledge of the singularities is useful information for discrimination of radar targets and has been used for different purposes of discrimination and identification. In this paper, we propose a modified scheme of radar target identification. The method presented is based on E-Pulse technique. In practical cases, direct application of classical E-Pulse techniques is not very efficient. Its performances are damaged by the characteristics of the exciting signal (antenna output signal). We propose a modified scheme of E-Pulse technique, which allows more accurate target discrimination and improves radar target identification. This procedure requires the deconvolution of the target response by the antenna signal and the application of an equivalent gaussian impulse excitation. This process has been successfully tested to FDTD simulations and measurements in anechoic chamber.

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"Identification of Radar Targets in Resonance Zone: E-Pulse Techniques," , Vol. 43, 39-58, 2003.
doi:10.2528/PIER02100201

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