Table of Contents
International Journal of Microwave Science and Technology
Volume 2015, Article ID 376374, 13 pages
Research Article

An Iterative Approach to Improve Images of Multiple Targets and Targets with Layered or Continuous Profile

Department of Electrical Engineering and the Graduate Institute of Communication Engineering, National Taiwan University, Taipei 106, Taiwan

Received 4 June 2015; Revised 24 August 2015; Accepted 31 August 2015

Academic Editor: Ramon Gonzalo

Copyright © 2015 Yu-Hsin Kuo and Jean-Fu Kiang. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


An iterative approach, based on the linear sampling method (LSM) and the contrast source inversion (CSI) method, is proposed to improve the recovered images of multiple targets and targets with layered or continuous profile, including shape and distribution of electric properties. The difficulties in dealing with large targets or high contrast are partly overcome with this approach. Typical targets studied in the literatures are chosen for simulations and comparison.