TY JOUR TI MODEL PARAMETER IDENTIFICATION OF ACOUSTIC SIGNALS IN AUDIO EXCHANGE TELECOMMUNICATION SYSTEMS UNDER CONDITIONS OF INTERFERENCE AND ACOUSTIC FEEDBACK SYSTEM KW models of acoustic signals KW audio exchange telecommunication systems KW acoustic feedback KW echo-signals KW voice communication KW postsynchronizing KW functional-differential equations KW approximation of distribution functions KW correlation function KW adaptive filter JO Bulletin of Bryansk state technical university AU Ermolaev, V.A. AU Kropotov, Y.A. PY 2019 IS 2019 PB Bryansk State Technical University