A Study on the Bit Error Rate between the Wayside Device and Onboard Device in ATP System

ATP system with the existing balise the ground beacon, train communications by telegram listed between trains to the exchange of information between wayside device and onboard device if an error occurs in this progress can lead to serious accidents. In this study, the wayside device /onboard device communication error rate is to research on. Telegram transmission distance gets longer with increasing train speed and readable magnetic and electric field intensity decreases which reduces the intensity of the signal to noise ratio(SNR) and consequently increased bit error rate(BER) sent a telegram to the increase in the problem can occur. ATP system, which is one of the ERTMS/ECTS system, the BFSK(Binary Frequency shift keying)method in relation to the bit error rate and SNR based on the speed of the train for ways reduce the error rate is presented.