Time domain inverse problem of 2-D dielectric cylinders by asynchronous particle swarm optimization Inverse scattering for 2-D dielectric cylinders
In this paper, inverse scattering technique for reconstructing the electromagnetic properties of a homogeneous dielectric cylinder is based on the finite difference time domain (FDTD) method and the asynchronous particle swarm optimization (APSO). The homogeneous dielectric cylinder with unknown electromagnetic properties is illuminated by transverse magnetic pulse and the scattered field is recorded outside. By minimizing the discrepancy between the measured and estimated scattered field data, the location, shape and permittivity of the dielectric cylinder are reconstructed. The inverse problem is resolved by an optimization approach, and the global searching scheme APSO is then employed to search the parameter space. A set of representative numerical results is presented for demonstrating that the proposed approach is able to efficiently reconstruct the electromagnetic properties of homogeneous dielectric scatterer even when the initial guess is far away from the exact one.
Inverse scattering time domain FDTD subgridding FDTD APSO
Chien-Hung Chen Chi-Hsien Sun Chien-Ching Chiu Xiaodong Zhang Chaoqun Jiao
Department of Computer and Communication Engineering, Taipei College of Maritime Technology, Danshui Electrical Engineering Department, Tamkang University, Tamsui Department of Electrical Engineering, Beijing Jiaotong University, Beijing
国际会议
2010 Cross-Strait Conference on Information Science and Technology(2010 海峡两岸信息科学与技术学术交流会)
秦皇岛
英文
13-15
2010-07-09（万方平台首次上网日期，不代表论文的发表时间）