| 講演名 | 2021-11-12 Development of a new low frequency GPR system for scanning huge structures Anwer Sayed(CNEAS), Motoyuki Sato(CNEAS), |
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| PDFダウンロードページ |  PDFダウンロードページへ |
| 抄録(和) | This paper presents a new low frequency (20MHz) radar system for scanning the huge structures of Pyramid in Egypt. A new compact antenna with Bowtie shape geometry is developed for Tx and Rx sides. A gain of 2 dBi is achieved for the antenna system. A proper feeding structure is deigned and fabricated to prohibit the flowing of the current to the outer part of the coaxial cables. The synchronization between Tx and Rx is accomplished for first time using optical link. The optical link consists of Electrical/Optical (E/O) modulator, optical cable, and Optical/electrical demodulator (O/E). The optical link provides a 5 dB gain. In addition, a low noise power amplifier with 25 dB gain is utilized to enhance the system performance. The LNA performance is evaluated experimentally at both Tx and Rx sides which shows better results at the Tx side. The developed GPR system has been verified by real measurements and shows reliable results. The system developed in this work is intended to be used in scanning the great Giza pyramid, which located in Giza, Egypt. The simulations are carried out using a commercial simulator. To validate our proposed GPR system, the prototype of is installed in a controlled environment and in operative conditions during the static test. |
| 抄録(英) | This paper presents a new low frequency (20MHz) radar system for scanning the huge structures of Pyramid in Egypt. A new compact antenna with Bowtie shape geometry is developed for Tx and Rx sides. A gain of 2 dBi is achieved for the antenna system. A proper feeding structure is deigned and fabricated to prohibit the flowing of the current to the outer part of the coaxial cables. The synchronization between Tx and Rx is accomplished for first time using optical link. The optical link consists of Electrical/Optical (E/O) modulator, optical cable, and Optical/electrical demodulator (O/E). The optical link provides a 5 dB gain. In addition, a low noise power amplifier with 25 dB gain is utilized to enhance the system performance. The LNA performance is evaluated experimentally at both Tx and Rx sides which shows better results at the Tx side. The developed GPR system has been verified by real measurements and shows reliable results. The system developed in this work is intended to be used in scanning the great Giza pyramid, which located in Giza, Egypt. The simulations are carried out using a commercial simulator. To validate our proposed GPR system, the prototype of is installed in a controlled environment and in operative conditions during the static test. |
| キーワード(和) | Pyramid / GPR / Bowtie antenna / Optical link |
| キーワード(英) | Pyramid / GPR / Bowtie antenna / Optical link |
| 資料番号 | SANE2021-60 |
| 発行日 | 2021-11-04 (SANE) |
| 研究会情報 | |
| 研究会 | SANE |
|---|---|
| 開催期間 | 2021/11/11(から2日開催) |
| 開催地（和） | オンライン開催 |
| 開催地（英） | Online |
| テーマ（和） | ICSANE2021/地下電磁計測ワークショップ |
| テーマ（英） | ICSANE2021/Workshop on subsurface electromagnetic measurement |
| 委員長氏名（和） | 森山 敏文(長崎大) |
| 委員長氏名（英） | Toshifumi Moriyama(Nagasaki Univ.) |
| 副委員長氏名（和） | 田中 真(東海大) / 網嶋 武(三菱電機) |
| 副委員長氏名（英） | Makoto Tanaka(Tokai Univ.) / Takeshi Amishima(Mitsubishi Electric) |
| 幹事氏名（和） | 夏秋 嶺(東大) / 二ッ森 俊一(電子航法研) |
| 幹事氏名（英） | Ryo Natsuaki(Univ. of Tokyo) / Shunichi Futatsumori(ENRI) |
| 幹事補佐氏名（和） | 北村 尭之(三菱電機) |
| 幹事補佐氏名（英） | Takayuki Kitamura(Mitsubishi Electric) |
| 講演論文情報詳細 | |
| 申込み研究会 | Technical Committee on Space, Aeronautical and Navigational Electronics |
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| 本文の言語 | ENG-JTITLE |
| タイトル（和） | Development of a new low frequency GPR system for scanning huge structures |
| サブタイトル（和） | |
| タイトル（英） | Development of a new low frequency GPR system for scanning huge structures |
| サブタイトル（和） | |
| キーワード(1)（和/英） | Pyramid / Pyramid |
| キーワード(2)（和/英） | GPR / GPR |
| キーワード(3)（和/英） | Bowtie antenna / Bowtie antenna |
| キーワード(4)（和/英） | Optical link / Optical link |
| 第 1 著者 氏名（和/英） | Anwer Sayed / Anwer Sayed |
| 第 1 著者 所属（和/英） | Center for Northeast Asian Studies, Tohoku University(略称：CNEAS) Center for Northeast Asian Studies, Tohoku University(略称：CNEAS) |
| 第 2 著者 氏名（和/英） | Motoyuki Sato / Motoyuki Sato |
| 第 2 著者 所属（和/英） | Center for Northeast Asian Studies, Tohoku University(略称：CNEAS) Center for Northeast Asian Studies, Tohoku University(略称：CNEAS) |
| 発表年月日 | 2021-11-12 |
| 資料番号 | SANE2021-60 |
| 巻番号（vol） | vol.121 |
| 号番号（no） | SANE-236 |
| ページ範囲 | pp.149-154(SANE), |
| ページ数 | 6 |
| 発行日 | 2021-11-04 (SANE) |