TRACK CIRCUIT RECEIVER Russian patent published in 1997 - IPC

FIELD: railway signalling and communication; checking condition of track circuits in which parameters of information signal at receiver input depend on condition of rail line and values of its primary parameters. SUBSTANCE: track circuit receiver has two processing channels for normal and shunt operation. Mean values of information parameters, posterior dispersions and posterior probabilities of shunt and normal operation of track circuit are determined in each channel. Provision of two processing channels makes it possible to determine varying parameters of track circuit control signal which increases safety and efficiency of receiver operation. EFFECT: enhanced safety and efficiency of operation. 3 dwg