Digital signal generator for railway signalling technology

  • Authors:

  • Martin Poupa

  • Affiliations:

  • Department of Applied Electronics and Telecommunications, University of West Bohemia, Pilsen, Czech Republic

  • Venue:
  • CSECS'08 Proceedings of the 7th conference on Circuits, systems, electronics, control and signal processing
  • Year:
  • 2008

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Abstract

This article deals with a design of a digital signal generator for the railway signalling technology. At present time signal generators and phase sensitive receivers are used as the railway signalling technology by the Czech Railways. These signal generators and phase sensitive receivers are used for detecting the presence of railway vehicles at the rail circuit and for checking of the rails integrity. The digital signal generator was designed using a direct digital synthesis. The generator is realized by VHDL language and implemented in a FPGA (Field Programmable Gate Array) device.