Abstract
The dynamic characteristics of a process without self-regulation could not be easily determined from its normal operating records because its impulse response never tends to zero within a finite length of time interval.
In this paper, a method for estimating the indicial response of the process which is not self-regulatory is proposed. By regarding the difference of the outputs which are separated by a certain length of time interval as the fictitious output, the input-output relation of he process can be approximated by a linear algebraic equation with a finite number of coefficients, which correspond to the second difference of the unknown indicial response. These unknown coefficients are easily determined by applying the least squares method. Experiments on an analogue simulator show the practicability of this method.
