Inversion of phaseless total field data using a two-step strategy based on the iterative multiscaling approach

被引：35

作者：

Franceschini, Gabriele ^{[1
]}

Donelli, Massimo ^{[1
]}

Azaro, Renzo ^{[1
]}

Massa, Andrea ^{[1
]}

机构：

[1] Univ Trent, Dept Informat & Commun Technol, I-38050 Trento, Italy

来源：

IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING | 2006年 / 44卷 / 12期

关键词：

electromagnetic imaging; integrated multiscaling; approach; inverse scattering; particle swarm optimizer (PSO); phaseless data (PD);

D O I：

10.1109/TGRS.2006.881753

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

In this paper, a new approach for the quantitative electromagnetic imaging of unknown scatterers located in free space from amplitude-only measurements of the total field is proposed and discussed. The reconstruction procedure splits the problem into two steps. The method is based on the use of an inverse source algorithm to first complete the scattering data by estimating the distribution of the radiated field in the investigation domain. The object's function profile is then retrieved from the phaseless data via an iterative multiresolution procedure integrated with an effective minimization technique based on the particle swarm algorithm. Numerical examples are provided to assess the effectiveness of the whole two-step strategy in the presence of synthetic noise-corrupted data as well as in dealing with experimental data sets. Comparisons with full-data and "bare" approaches are reported as well.

引用

页码：3527 / 3539

页数：13

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