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| Applicability Analysis of GTD Model for Target Scattering Mechanism Modeling in Resonance Band |
| Wang Dang-wei; Ma Xin-yi; Guan Xin-pu; Wang Shao-gang; Su yi |
| School of Electronic Science and Engineering, National Univ. of Defense Technology, Changsha 410073, China |
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Abstract In order to demonstrate the effectiveness of GTD model, usually used to model the target scattering behaviors in optical frequency band, for target resonance band, a new method for the GTD model parameters extraction based on matching pursuits is proposed in this paper. Then, the proposed method and Li’s least-square-fitting scheme are used to analyze the resonance scattering data of a aluminum sphere and the measured ultra-wide band scattering data of a finite-length cylinder through the GTD model, Altes model and extended Altes model. Furthermore, after contrasting the scattering behavior parameters and fitting results, some important conclusions are obtained.
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Received: 15 November 2005
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2007, Vol. 29 
