Application of OFDM transmission method for railway signalling system via track circuit. Issue 1 (February 2021)

• Record Type: Journal Article
• Authors: Higuchi, Ryo; Mochizuki, Hiroshi; Nakamura, Hideo; Ishikawa, Ryo; Sano, Minoru; Nishida, Satoshi
• Is Part Of: Journal of physics. Volume 1780:Issue 1(2021)
• Publication Date: 2021-02
• Subjects: Physics -- Congresses; 530.5
• DOI: 10.1088/1742-6596/1780/1/012037
• Languages: English
• ISSNs: 1742-6588

Abstract

Abstract: At present, railway signalling systems in which control information is transmitted via track circuits (rails) have been deployed in many applications, such as automatic train control (ATC) systems in Japan. In these systems, it is difficult to increase the transmission speed due to the transmission characteristics of rails. To overcome this problem, we have proposed a new transmission method using orthogonal frequency division multiplexing (OFDM) and evaluated a configuration in which data judgment using majority decision was applied for improving the bit error rate (BER) characteristics. In this paper, we describe an FPGA implementation of our proposed method and the performance of the implemented devices.