Title :
Performance of railway track circuit codes with burst interference
Author :
Collins, M.J. ; Martin, J.D.
Author_Institution :
Sch. of Electron. & Electr. Eng., Bath Univ., UK
Abstract :
The data capacity of railway track circuits can be increased by the use of binary block codes. A comma-free coding scheme suitable for railway track circuit data is presented which out performs the other comma-free code construction in terms of synchronisation in Gaussian noise. However, the interference encountered in a railway environment is likely to be impulsive and bursty rather than Gaussian. Simulation results of the (31,11) BCH coset code modulated by non-coherent FSK are presented, using an impulsive interference model which more accurately represents typical railway noise
Keywords :
BCH codes; Gaussian noise; binary sequences; block codes; burst noise; cyclic codes; data communication; electromagnetic interference; frequency shift keying; modulation coding; rail traffic; railways; signalling; synchronisation; traffic control; white noise; AWGN; BCH coset code; Gaussian noise; binary block codes; burst interference; bursty noise; comma-free code construction; cyclic codes; data capacity; impulsive interference model; impulsive noise; noncoherent FSK; performance; railway noise; railway track circuit codes; railway track circuit data; simulation results; synchronisation; Additive white noise; Circuit noise; Circuit simulation; Decoding; Error correction codes; Frequency shift keying; Gaussian noise; Interference; Modulation coding; Rail transportation;
Conference_Titel :
Vehicular Technology Conference, 1997, IEEE 47th
Conference_Location :
Phoenix, AZ
Print_ISBN :
0-7803-3659-3
DOI :
10.1109/VETEC.1997.605894
