A Forward Approach to Establish Parametric Scattering Center Models for Known Complex Radar Targets Applied to SAR ATR

作者：He, Yang; He, Si-Yuan^*; Zhang, Yun-Hua; Wen, Gong-Jian; Yu, Ding-Feng; Zhu, Guo-Qiang

来源：IEEE Transactions on Antennas and Propagation, 2014, 62(12): 6192-6205.

DOI：10.1109/TAP.2014.2360700

• Parametric modeling
• ray tracing
• scattering centers
• synthetic aperture radar (SAR) automatic target recognition (ATR)

This paper presents a forward approach to establish parametric scattering center models for known complex radar targets. In this approach, an automatic technique based on ray tracing and clustering is first developed to extract scattering centers directly from the computer-aided design (CAD) model of the targets. Following this, a set of forward methods is developed to determine the physically relevant parameters of two-dimension (2-D) attributed scatterers, such as type, amplitude, position and length. Finally, this approach is validated through the parametric model establishment of two complex targets and good agreement has been demonstrated between the reconstructed and actual radar characteristics. Different from the familiar inverse extraction approaches, the proposed approach provides a new forward way of constructing radar targets' feature database based on 2-D parametric scattering center model, which will ultimately facilitate the feature matching in the synthetic aperture radar (SAR) automatic target recognition (ATR) system.

• 出版日期2014-12
• 单位中国人民解放军国防科学技术大学; 武汉第二船舶设计研究所; 武汉大学