Volume 40, Issue 6 (November 2012)

    Solving an Inverse Scattering Problem of an Embedded Perfectly Conducting Cylinder by Asynchronous Particle Swarm Optimization

    (Received 18 June 2011; accepted 10 April 2012)

    Published Online: 2012

    CODEN: JTEOAD

      Format Pages Price  
    PDF Version 11 $25   ADD TO CART


    Abstract

    We present a computational approach to the imaging of a two-dimensional (2D) embedded perfectly conducting cylinder by the asynchronous particle swarm optimization (APSO). An embedded conducting cylinder of unknown shape scatters the incident transverse magnetic (TM) wave in a half space while the scattered field is recorded outside. Based on the boundary condition and the measured scattered field, a set of nonlinear integral equations is derived and the imaging problem is reformulated into an optimization problem. The inverse problem is solved by an optimization approach and the global searching scheme, the asynchronous particle swarm optimization is then employed to search the parameter space. This method is tested by several numerical examples, and it is found that the performance of the APSO is robust for reconstructing the perfectly conducting cylinder. Numerical simulations show that even when the measured scattered fields are contaminated with Gaussian noise, the quality of the reconstructed results obtained by the APSO algorithm is very good.


    Author Information:

    Chiu, Chien-Ching
    Electrical Engineering Dept., Tamkang Univ., Tamsui,

    Hsu, Jung-Chin
    Electrical Engineering Dept., Tamkang Univ., Tamsui,

    Hsiao, Wei-Chun
    Electrical Engineering Dept., Tamkang Univ., Tamsui,


    Stock #: JTE104134

    ISSN: 0090-3973

    DOI: 10.1520/JTE104134

    ASTM International is a member of CrossRef.

    Author
    Title Solving an Inverse Scattering Problem of an Embedded Perfectly Conducting Cylinder by Asynchronous Particle Swarm Optimization
    Symposium , 0000-00-00
    Committee E07