TY JOUR TI Railway Circuit Controller: Adaptive Control and Digital Processing Based on Broadband Signals KW Railway circuit KW broadband signals KW linear frequency modulation KW ballast resistance KW diagnostics KW digital processing of signals KW controller JO Transport automation research AU Maryukhnenko, V.S. AU Mudraya, N.G. PY 2025 IS 11 PB FSBEI HE "Emperor Alexander I St. Petersburg State Transport University"