Title :
Compatibility of railway cab signalling by track circuits and spread spectrum modulations with four-quadrant controller AC drives
Author :
Costamagna, Eugenio ; Favalli, Lorenzo ; Gamba, Paolo ; Savazzi, Pietro
Author_Institution :
Dipt. di Elettronica, Pavia Univ., Italy
Abstract :
Spread spectrum modulations are considered for track circuits signalling in the presence of the noise generated by four-quadrant controller drives as used in asynchronous motor AC 50 Hz or 16.7 Hz locomotives. Some characteristic features of the noise and the main design problems of possible spread spectrum systems are discussed
Keywords :
electric locomotives; induction motor drives; modulation; noise; railways; signalling; spread spectrum communication; traction motor drives; 16.7 Hz; 50 Hz; asynchronous motor locomotives; design; four-quadrant controller AC drives; noise; railway cab signalling; spread spectrum modulation; track circuits; Choppers; Circuit noise; Engines; Frequency; Narrowband; Noise generators; Power system simulation; Rail transportation; Spread spectrum communication; Traction motors;
Conference_Titel :
Vehicular Technology Conference, 1999 IEEE 49th
Conference_Location :
Houston, TX
Print_ISBN :
0-7803-5565-2
DOI :
10.1109/VETEC.1999.780534
