Detection of information signal of tone rail circuit under conditions of simultaneous influence of five different interference

Abstract

The rail circuit is a distributed sensor of information on free or occupated sections of the railway track. Its large physical dimensions lead to the fact that interference electric oscillations of various origins are added to the information signal propagated. Decisions on the freedom or occupancy of an area must be made at short observation intervals (about one second). This solution consists of determining the presence or absence of a signal at the input of the track sensor.