On a correlation between sensitivity and identificability of dynamical systems

A correlation between sensitivity and identificability of the continuous and discrete systems is considered in this paper. First, a method for determining parametric sensitivity is presented and then identification is performed and system identificability is derived directly from the identification error. Based on these results, we have calculated the correlation coefficient between these two systems features. Experiments have confirmed very strong correlation between sensitivity and identificability for continuous as well as for discrete time systems.