妨害電波が混入された測定データから入射波情報を抽出する技術

カテゴリ: 論文誌(論文単位)

グループ名: 【A】基礎・材料・共通部門

発行日: 2023/08/01

タイトル(英語): A Method for Extracting Incident Wave Information from Measurement Data Mixed with Interfering Waves

著者名: 濱村　昌弘（福岡大学），圓谷　友紀（福岡大学），孟　志奇（福岡大学），竹中　隆（長崎大学）

著者名(英語): Masahiro Hamamura (Fukuoka University), Tomonori Tsuburaya (Fukuoka University), Zhiqi Meng (Fukuoka University), Takashi Takenaka (Nagasaki University)

キーワード: 入射波の抽出，円筒波展開，妨害電波，逆散乱問題　　extraction of incident wave，cylindrical wave expansion，interfering wave，inverse scattering problem

要約(英語): Solving the inverse scattering problem of determining the position, shape, and electrical parameter distributions of a target object requires information not only on the scattered waves but also on the incident waves. Almost all inverse scattering methods assume that the incident wave is known on the observation curve and in the estimation region that includes the object. However, it is sometimes difficult to remove the object and measure the incident wave. To address this situation, a method to estimate the incident field from the total electromagnetic field data (the sum of incident and scattered wave fields) measured on the observation circle has been proposed in recent years. In measurements outside an anechoic chamber, the incident wave to an object is a composite of the electromagnetic wave to probe the object and the unwanted electromagnetic wave from mobile phones and other sources. In this paper, we apply this method to the extraction of incident wave information from total electromagnetic field data measured on the observation circle in the presence of unwanted electromagnetic waves, and also propose a method to extract incident wave information from total electric field data alone. The influence of noise will also be discussed.

本誌: 電気学会論文誌A（基礎・材料・共通部門誌） Vol.143 No.8 （2023）

本誌掲載ページ: 273-279 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejfms/143/8/143_273/_article/-char/ja/