TY JOUR TI Research of Two-Modulus Weighted Codes with Summation Involving Arbitrary Partitions of Several Data Symbols KW controllable systems KW self-checking systems KW sum codes KW Berger code KW weight-based sum codes KW errors detection in data vectors KW undetectable error KW detection of unidirectional errors KW code properties JO Transport automation research AU Efanov, D.V. AU Timoshenkov, M.V. AU Sivachenko, L.A. AU Leskovets, I.V. PY 2023 IS 9 PB FSBEI HE "Emperor Alexander I St. Petersburg State Transport University"