Joint Time-Frequency Analysis of Ultra Wideband Radar Signals
H.-S. Lui, N.V.Z. Shuley
University of Queensland, Australia
The time variant nature of an Ultra-Wideband (UWB) radar signal scattered from a radar target is well described throughout the literature. To study the behaviour of these transient signals, Joint Time-Frequency (TF) analysis is considered. Various Time-Frequency Distributions (TFDs) have been developed in the signal processing area over the last twenty years but little work has been done in a UWB context. In particular, the main objective of this paper is to study the transient electromagnetic scattering phenomena from a metallic radar target in free space. Numerical examples using a bent wire target will be presented to demonstrate the feasibility of using TFDs to study the electromagnetic scattering phenomena embedded in the target response.
Proceedings of the International Conference on Signal Processing and Communication Systems
2007
December
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