%0 Journal Article %T Advanced methods of voice-frequency track circuits coding %A Kravtsov, Y.A. %A Arkhipov, E.V. %A Bakin, M.E. %K voice-frequency track circuit, automatic cab signaling system, transmitter relay, code combination, electric arc, non-contact generator of ALSN code signals, relay switching elements, train traffi c safety, electric interlocking, matching elements, rolling stock %J Transport automation research %D 2015 %N 1 %P 7 %I FSBEI HE "Emperor Alexander I St. Petersburg State Transport University"