Simulating discrete time model reference adaptive control system with great initial error — Solution and analysis 1

This article presents a discrete time model reference parameter tracking technique which is applicable for less order reference model, first introduced by A. A. Azab [8]. The order of the reference model is (n-1), where n is the number of the adjustable parameters in the physical plant. The technique utilizes a modified gradient method [9] where the knowledge of the exact order of the nonadaptive system is not required, so, as to eliminate the identification problem. Computer simulations for the solution and sensitivity analysis of one example are provided to demonstrate the simplicity and feasibility of the technique.