FIELD: identifying and computing fast-varying process parameters or disturbing actions for installations of basic materials industry. SUBSTANCE: process parameters to be identified are determined by means of process model depending on in-process measured values; process model has at least one process model unvarying with time or, accordingly, that in most degree unvarying with time which is, essentially, time-averaged process mapping and at least one process model varying with time which is matched with at least one time constant of disturbing action or process parameter variation value. EFFECT: enhanced speed of computing industrial process parameters. 13 cl, 4 dwg
