The Analysis of Railway signal using DSP

DSP를 사용한 열차 신호 분석

  • 김기승 (LG산전 도시시스템연구실) ;
  • 김치조 (LG산전 도시시스템연구) ;
  • 임관수 (LG산전 도시시스템연구) ;
  • 조용기 (LG산전 도시시스템연구실)
  • Published : 1998.11.01

Abstract

It is extremely necessary to use such a secure way to transmit information to a train, which is needed for operating a train. In our system, The information including the allowable velocity of the train, train existence in current area, and other data necessary for operating train, is transmitted in the form of FM signal. Received by the receiver located on train, the signal is filtered, demodulated and analyzed to extract the original information. The analysis of the demodulated signal is done through FFT algorithm using sliding slot. These all are processed digitally by hardware which is implemented by 32bit DSP. The experiments show the validity of the algorithm we presented.

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