TY JOUR TI Effectiveness of systems for processing successive multifrequency signals in the extremely low frequencies noise KW detection with distinguishing (classification) signals KW robust processing elements of successive multifrequency signal KW Fisher’s test JO Scientific and analytical journal «Vestnik Saint-Petersburg university of State fire service of EMERCOM of Russia» AU Pus', V.V. AU Ivanov, A.V. AU Danilova, T.V. PY 2015 IS 2015 PB Saint-Petersburg University of State Fire Service of Emercom of Russia