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| 2D Scattering Centers Extraction of Objects Based on GTD Model |
| Wang Jing; Zhou Jian-jiang; Wang Fei |
| College of Information Science & Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China |
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Abstract To describe accurately high frequency electromagnetic scattering of the stealthy object, the GTD model is introduced in this paper, instead of the DE model which is described the normal object mainly by studying their specular scattering. Traditional matrix pencil method needs large computational load and additional step of pairing. Therefore modified matrix pencil method and two dimensional (2D) ESPRIT method are proposed in this paper to extract the scattering centers based on GTD model to avoid these drawbacks. Simulations show that these two methods can be applied to the scatterers extraction from the stealthy objects whose main scattering centers are formed by the edge diffraction.
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Received: 26 November 2007
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2009, Vol. 31 
