A Novel Imaging Approach for Dispersive Target Electromagnetic Imaging

Abstract:

A novel imaging approach for dispersive target electromagnetic imaging based on the time-frequency analysis is presented in this paper. On the foundation of researching the time-domain imaging principle of dispersive target, the basic theory of back projection imaging algorithm and time-frequency analysis is discussed. The sampling data obtained by simulation of target electromagnetic wave scattering which is accomplished by finite-difference time domain method (FDTD). According to the simulating data, after disposing by Wigner-Ville transfer, the sampling data is processed integral management in frequency-domain, and the imaging experiment is carried out. The experiment results show that the improved imaging arithmetic could estimate the shape of dispersive target and improve the imaging quality.

• Periodical: Applied Mechanics and Materials (Volumes 427-429)
• Pages: 1972-1976
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.427-429.1972
• Online since: September 2013
• Authors: Guo Rong Huang*, Wei Jun Zhong, Chao Wang, Yuan Pei Wu
• Keywords: Back Projection Algorithm (BP), Dispersive Target, Finite Difference Time Domain (FDTD) Method, Winger-Ville Distribution

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