復調直流電圧を用いた時間領域スペクトル分離方式ファンビームマイクロ波CTの試み

カテゴリ: 論文誌(論文単位)

グループ名: 【C】電子・情報・システム部門

発行日: 2012/06/01

タイトル(英語): An Attempt of Fan Beam Microwave CT System which Determines the Straight Transmission Path by Time Domain Measurement of Demodulated DC Voltage

著者名: 田村　睦（新潟大学大学院自然科学研究科），小川　隆博（新潟大学大学院自然科学研究科），竹内　裕貴（新潟大学工学部福祉人間工学科），宮川　道夫（新潟大学大学院自然科学研究科）

著者名(英語): Mutsumi Tamura (Graduate School of Science and Technology, Niigata University), Takahiro Ogawa (Graduate School of Science and Technology, Niigata University), Yuuki Takeuchi (Faculty of Engineering, Niigata University), Michio Miyakawa (Graduate School of Science and Technology, Niigata University)

キーワード: チャープパルス，マイクロ波CT，ダイナミックレンジ，遅延時間　　chirp pulse，microwave CT，dynamic range，delay time

要約(英語): We have developed demodulated direct current voltage-based microwave CT (DC-MCT) which is composed on the basis of chirp-pulse microwave CT. DC-MCT was used time domain measurement technique to determine the shortest propagation path between the transmitting-and receiving-antennas. By using standard signal generator with the low phase noise and phase synchronization of signal source, the reconstructed amplitude-and phase-images can be obtained. A study of high speed imaging, the method of measurement and the influence of overshoot characteristics from the low pass filter were examined, then these images were evaluated for the number of rotary scanning of 50 and 72. In addition, for the purpose of improvement of resolution, pursuing a time domain spectrum which gives the max value of amplitude was showed the possibility to improve receiver dynamic range. At the result, this paper shows usefulness of new method for microwave imaging.

本誌: 電気学会論文誌C（電子・情報・システム部門誌） Vol.132 No.6 （2012） 特集：データ指向型モデリング/予測/制御

本誌掲載ページ: 960-967 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/ieejeiss/132/6/132_960/_article/-char/ja/