Inverse Scattering Analysis from Measurement Data of Total Electric and Magnetic Fields by Means of Cylindrical-Wave Expansion
Microwave tomography is an effective technique to estimate material distribution, where inverse scattering analysis is performed on the assumption that accurate information on the incident field is known for a measurement curve as well as in the target region. In reality, however, the information ma...
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doaj-9fa8ccb40b194e1393f0cc3a5e45e0602020-11-25T00:30:03ZengMDPI AGElectronics2079-92922019-04-018441710.3390/electronics8040417electronics8040417Inverse Scattering Analysis from Measurement Data of Total Electric and Magnetic Fields by Means of Cylindrical-Wave ExpansionTomonori Tsuburaya0Zhiqi Meng1Takashi Takenaka2Department of Electrical Engineering, Fukuoka University, Fukuoka 814-0180, JapanDepartment of Electrical Engineering, Fukuoka University, Fukuoka 814-0180, JapanDepartment of Electrical and Electronic Engineering, Nagasaki University, Nagasaki 852-8521, JapanMicrowave tomography is an effective technique to estimate material distribution, where inverse scattering analysis is performed on the assumption that accurate information on the incident field is known for a measurement curve as well as in the target region. In reality, however, the information may often be unobtainable due to multiple scattering between the transmitting antenna and the target object, or existence of unwanted waves and obstacles. In this paper, a method to extract information on incident fields from measured total field data is proposed. The validity of the proposed method is verified on 2D TM<i><sub>z</sub></i> problems, where a cylindrical, a square, and an L-shape homogeneous object are employed as a target object. Furthermore, it is shown that the method is available even when there are unwanted obstacles outside the measurement curve.https://www.mdpi.com/2079-9292/8/4/417incident fieldinverse scatteringtotal field dataunwanted obstacles and waves |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Tomonori Tsuburaya Zhiqi Meng Takashi Takenaka |
spellingShingle |
Tomonori Tsuburaya Zhiqi Meng Takashi Takenaka Inverse Scattering Analysis from Measurement Data of Total Electric and Magnetic Fields by Means of Cylindrical-Wave Expansion Electronics incident field inverse scattering total field data unwanted obstacles and waves |
author_facet |
Tomonori Tsuburaya Zhiqi Meng Takashi Takenaka |
author_sort |
Tomonori Tsuburaya |
title |
Inverse Scattering Analysis from Measurement Data of Total Electric and Magnetic Fields by Means of Cylindrical-Wave Expansion |
title_short |
Inverse Scattering Analysis from Measurement Data of Total Electric and Magnetic Fields by Means of Cylindrical-Wave Expansion |
title_full |
Inverse Scattering Analysis from Measurement Data of Total Electric and Magnetic Fields by Means of Cylindrical-Wave Expansion |
title_fullStr |
Inverse Scattering Analysis from Measurement Data of Total Electric and Magnetic Fields by Means of Cylindrical-Wave Expansion |
title_full_unstemmed |
Inverse Scattering Analysis from Measurement Data of Total Electric and Magnetic Fields by Means of Cylindrical-Wave Expansion |
title_sort |
inverse scattering analysis from measurement data of total electric and magnetic fields by means of cylindrical-wave expansion |
publisher |
MDPI AG |
series |
Electronics |
issn |
2079-9292 |
publishDate |
2019-04-01 |
description |
Microwave tomography is an effective technique to estimate material distribution, where inverse scattering analysis is performed on the assumption that accurate information on the incident field is known for a measurement curve as well as in the target region. In reality, however, the information may often be unobtainable due to multiple scattering between the transmitting antenna and the target object, or existence of unwanted waves and obstacles. In this paper, a method to extract information on incident fields from measured total field data is proposed. The validity of the proposed method is verified on 2D TM<i><sub>z</sub></i> problems, where a cylindrical, a square, and an L-shape homogeneous object are employed as a target object. Furthermore, it is shown that the method is available even when there are unwanted obstacles outside the measurement curve. |
topic |
incident field inverse scattering total field data unwanted obstacles and waves |
url |
https://www.mdpi.com/2079-9292/8/4/417 |
work_keys_str_mv |
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