Title :
Railway cab signalling by spread spectrum modulations and compatibility with narrow band track circuits
Author :
Costamagna, Eugenio ; Gamba, Paolo ; Pellegrini, Pier Franco
Author_Institution :
Dipt. di Elettronica, Pavia Univ., Italy
Abstract :
Following previous works, a quantitative assessment is performed for the performance of spread spectrum direct sequence cab signalling on railway track circuits. This usefully updates the assessment of the capabilities of the track circuit techniques. Both interference spectra provided by the CCTTT and data recorded during tests run on Italian State Railways have been used to represent harmful traction currents from solid-state modern locomotive equipment
Keywords :
electromagnetic compatibility; land mobile radio; modulation; pseudonoise codes; radiofrequency interference; railways; spread spectrum communication; telecommunication signalling; CCTTT; DS-SS; EM compatibility; Italian State Railway; direct sequence spread spectrum; harmful traction currents; interference spectra; narrow band track circuits; railway cab signalling; solid-state modern locomotive equipment; spread spectrum modulation; track circuit techniques; Bandwidth; Bit rate; Circuit simulation; Interference; Narrowband; Power system reliability; Rail transportation; Satellite broadcasting; Solid state circuits; Spread spectrum communication;
Conference_Titel :
Electrotechnical Conference, 1996. MELECON '96., 8th Mediterranean
Conference_Location :
Bari
Print_ISBN :
0-7803-3109-5
DOI :
10.1109/MELCON.1996.551274
