On one method for recording signals and interference in rail lines.

Train interval control systems (SIRDP) contain channels for transmitting information, in particular, about the presence or absence of a train on a controlled section of the track, the integrity of the rails and the speed of a particular train in a particular track ordinate and at a particular time. In these channels, rail lines (RL) are used as communication lines. These lines operate under the most unfavorable operating conditions: low, time-varying insulation resistance, longitudinal asymmetry and the presence of interference from the traction current of the electric rolling stock. The reliable functioning of the SIRDP and the safety of train traffic largely depend on the quality of the functioning of the RL. Therefore, it is necessary to know exactly the dependence of the radar parameters on the environmental parameters that affect the quality of the functioning of the communication channels with the radar. The paper describes a method for registering signals and interference in radar with simultaneous analysis of environmental parameters automatically, that is, in the absence of observers. A functional diagram of a device for recording signals and interference in a rail line in automatic mode is considered. Fragments of electrical circuit diagrams are presented that implement automatic start and stop of the recorder, separation of the recorded signal realizations. [ABSTRACT FROM AUTHOR]