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■ページ数 9ページ



Estimation of an Underground Cavity by the Particle Swarm Optimization of Equivalent Circuit Model for Multilayer Structures

■著者名 中村 航希(東京都市大学 大学院総合理工学研究科),鄭 博俊(東京都市大学 大学院総合理工学研究科),柴田 随道(東京都市大学 大学院総合理工学研究科)
■著者名(英語) Koki Nakamura (Graduate School of Integrative Science and Engineering, Tokyo City University), Bojun Zheng (Graduate School of Integrative Science and Engineering, Tokyo City University), Tsugumichi Shibata (Graduate School of Integrative Science and Engineering, Tokyo City University)
■価格 会員 ¥550 一般 ¥770
■書籍種類 論文誌(論文単位)
■グループ名 【C】電子・情報・システム部門
■本誌 電気学会論文誌C(電子・情報・システム部門誌) Vol.141 No.12 (2021) 特集T:電気・電子・情報関係学会東海支部連合大会 特集U:研究会優秀論文
■本誌掲載ページ 1371-1379ページ
■原稿種別 論文/日本語
■電子版へのリンク https://www.jstage.jst.go.jp/article/ieejeiss/141/12/141_1371/_article/-char/ja/
■キーワード 多層モデル,粒子群最適化,後方散乱応答,地中レーダー  multilayer model,particle swarm optimization,backscattering response,ground-penetrating radar
■要約(英語) Inspection of the occurrence of underground cavities is important for preventing sudden road collapse accidents. As a non-excavation inspection method, there is a ground penetrating radar technology that observes the backscattering response when electromagnetic waves are directed into the ground. It is expected that accurate estimation of the underground structure will be possible by devising the analysis method of the response data obtained by the radar. In this paper, we approximate the underground structure as a parallel multilayer structure with layers stacked in the direction perpendicular to the ground surface, and construct two mathematical models that give the backscattering response when waves are radiated into the ground. The underground structure can be estimated by optimizing the structural parameters of the model so that the backscattering response given by the model matches the measured response. After comparing the accuracy of the two models, we propose a structure estimation method using Particle Swarm Optimization (PSO). PSO is one of the metaheuristic optimization algorithms with excellent global exploration performance in a multidimensional data space. In this paper, the existence of a cavity is estimated by optimizing the medium constants of many layers, assuming an underground structure model consisting of 21 layers. The possibility of precise inspection of underground cavities is demonstrated.
■版 型 A4
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