Synthesis of 3-D separable-denominator state-space digital filters with minimum L-2-sensitivity
This paper deals with the analysis and minimization of L-2-sensitivity for three-dimensional state-space digital filters which are separable in the denominator. First, a novel expression for evaluating the L-2-sensitivity is developed in closed form. An iterative procedure for synthesizing the optimal filter structures is then presented so as to minimize the L-2-sensitivity. Finally, a numerical example is given to illustrate the utility of the proposed technique.
3-d digital filter roesser's local state-space model separable denominator l-2-sensitivity analysis l-2-sensitivity minimization optimal filter realization