Compound Operator Decomposition and Its Application to Hammerstein and Wiener Systems

One of the main difficulties in the automatic control is caused by the fact that real systems are generally nonlinear. For better mathematical tractability of control system descriptions we are usually forced to make proper assumptions and to use approximations and/or simplifications, hoping that any possible side effects will not be too severe. Therefore, the approaches dealing with nonlinear dynamic systems are generally restrictive in assumptions and applicable to special cases only.

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