### The effect of disturbance in the identification of technological systems

**Miroslav Olehla**

#### Abstract

The main characteristic of experimental identification is in using data obtained in a process by observation, respectively experimentation. The model of a process is therefore defined by an input and an output data file of the process. This paper focuses on the identification of linear systems (SISO). The impulse and step responses are determined and also the coefficients of the difference equations with a general input signal. These methods uses a generated general input signal or from the measurement of technological quantities. This paper mainly shows the effect of disturbance on input, output and measured input with the help of correlation functions.

#### Keywords

Identification, effect of disturbance, correlation function, transfer function, measured input, output. 2008-12-31

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