中国物理B ›› 2012, Vol. 21 ›› Issue (5): 50204-050204.doi: 10.1088/1674-1056/21/5/050204

• GENERAL • 上一篇    下一篇

Relevance vector machine technique for the inverse scattering problem

王芳芳,张业荣   

  1. School of Electronic Science and Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210003, China
  • 收稿日期:2011-08-26 修回日期:2012-04-27 出版日期:2012-04-01 发布日期:2012-04-01
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 61071022) and the Graduate Student Research and Innovation Program of Jiangsu Province, China (Grant No. CXZZ11-0381).

Relevance vector machine technique for the inverse scattering problem

Wang Fang-Fang(王芳芳) and Zhang Ye-Rong(张业荣)   

  1. School of Electronic Science and Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210003, China
  • Received:2011-08-26 Revised:2012-04-27 Online:2012-04-01 Published:2012-04-01
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 61071022) and the Graduate Student Research and Innovation Program of Jiangsu Province, China (Grant No. CXZZ11-0381).

摘要: A novel method based on the relevance vector machine (RVM) for the inverse scattering problem is presented in this paper. The nonlinearity and the ill-posedness inherent in this problem are simultaneously considered. The nonlinearity is embodied in the relation between the scattered field and the target property, which can be obtained through the RVM training process. Besides, rather than utilizing regularization, the ill-posed nature of the inversion is naturally accounted for because the RVM can produce a probabilistic output. Simulation results reveal that the proposed RVM-based approach can provide comparative performances in terms of accuracy, convergence, robustness, generalization, and improved performance in terms of sparse property in comparison with the support vector machine (SVM) based approach.

关键词: inverse scattering problem, through-wall problem, relevance vector machine, finite-difference time-domain

Abstract: A novel method based on the relevance vector machine (RVM) for the inverse scattering problem is presented in this paper. The nonlinearity and the ill-posedness inherent in this problem are simultaneously considered. The nonlinearity is embodied in the relation between the scattered field and the target property, which can be obtained through the RVM training process. Besides, rather than utilizing regularization, the ill-posed nature of the inversion is naturally accounted for because the RVM can produce a probabilistic output. Simulation results reveal that the proposed RVM-based approach can provide comparative performances in terms of accuracy, convergence, robustness, generalization, and improved performance in terms of sparse property in comparison with the support vector machine (SVM) based approach.

Key words: inverse scattering problem, through-wall problem, relevance vector machine, finite-difference time-domain

中图分类号:  (Inverse problems)

  • 02.30.Zz
29.40.Gx (Tracking and position-sensitive detectors) 41.20.Jb (Electromagnetic wave propagation; radiowave propagation) 81.70.Ex (Nondestructive testing: electromagnetic testing, eddy-current testing)