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임관수(Lim Kwan-Soo),김기승(Kim Gi-Seung),박상진(Park Sang-Jin),조용기(Cho Yong-Gee) 한국철도학회 1998 한국철도학회 학술발표대회논문집 Vol.- No.-
The information for operating the train should be transmitted to train, with extreme security. In our system. The information, such that 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 for extracting the original information. The analysis of the demodulated signal is done through FFT algorithm using sliding slot. The simulation results shows the validity of the algorithm.
김기승(Kim Gi-Seung),김치조(Kim Chi-Jo),임관수(Lim Kwan-Soo),조용기(Cho Yong-Gee) 한국철도학회 1998 한국철도학회 학술발표대회논문집 Vol.- No.-
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.