軌道回路伝送を目的としたCDM-QAM伝送装置の開発と評価

カテゴリ: 論文誌(論文単位)

グループ名: 【D】産業応用部門

発行日: 2015/04/01

タイトル(英語): Development and Evaluation of CDM-QAM Transmission Devices for Track Circuit

著者名: 伊藤　裕希（日本大学理工学部），望月　寛（日本大学理工学部），中村　英夫（日本大学理工学部），石川　了（京三製作所），佐野　実（京三製作所），西田　賢史（京三製作所）

著者名(英語): Yuki Ito (College of Science and Technology, Nihon University), Hiroshi Mochizuki (College of Science and Technology, Nihon University), Hideo Nakamura (College of Science and Technology, Nihon University), Ryo Ishikawa (Kyosan Electric Mfg Co, Ltd.), Minoru Sano (Kyosan Electric Mfg Co, Ltd.), Satoshi Nishida (Kyosan Electric Mfg Co, Ltd.)

キーワード: 鉄道信号システム，軌道回路，鉄道雑音，CDM，QAM　　railway signaling system，track circuit，railway noise，CDM，QAM

要約(英語): At present, in Japan, railway signaling systems in which control information is transmitted via rails have been deployed in many applications such as automatic train control (ATC) systems for controlling train speed. Recently considerable R&D has been conducted on digital ATC systems realized by applying digital modulation methods such as minimum shift keying (MSK), and such systems have been installed in some railway lines in urban areas. However, it is difficult to increase the transmission speed owing to the railway noise and the strong attenuation of the track circuit. Therefore the present transmission speed is approximately 300bps. To overcome this problem, we have proposed a new modulation method combining code-division multiple (CDM) and quadrature amplitude modulation (QAM), called the CDM-QAM method. Further we have studied the effectiveness of the CDM-QAM method by conducting computer simulations. In this paper, we developed CDM-QAM transmission devices using digital signal processors (DSPs) and field programmable gate array (FPGA). In addition, we evaluated the performance of the developed devices on the basis parameters such as the bit error rate (BER) characteristics of the measurement environment which was configured to include railway noise.

本誌: 電気学会論文誌D（産業応用部門誌） Vol.135 No.4 （2015） 特集：J-RAIL 2013

本誌掲載ページ: 444-450 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/ieejias/135/4/135_444/_article/-char/ja/