2-D digital filters approximation

摘要

The work presented in this paper concerns with synthesis of the two-dimensional Infinite Impulse Response (IIR) filters based on model order reduction. The synthesis is performed with two methods, the Prony's method (Prony modified) and Iterative method, in the spatial domain, and with the method of Semi-Definite iterative Programming (SDP), in the frequency domain. The order reduction of the filter is based on the Quasi-Gramians method.