出版社：Society for Microwave Technique, Technologies and Systems, Serbia and Montenegro IEEE MTT-S Chapter
摘要：In this paper we will present properties of three different model order reduction methods for a control system all three applied on FIR filters: Balanced Model Order Reduction (BMR), Singular Perturbations Model Reduction (SPR) and Optimal Hankel-Norm Approximation (OHA). Also, we will discuss influences of group delay error of a reduced filter; pass band range, order and sampling frequency on level of reduction. In particular we will consider implementation of reduced filter. Our results from theoretical approaches will be illustrated by a concrete problem. We will show that the order of an FIR filter can be reduced by 78% preserving linear phase in pass band. The reduced filter is stable linear phase IIR filter, which is an essential part in our case of a complex audio system. It requires less power consumption than a higher order FIR filter
