Systems with constant group delay and symmetric impulse response (CGDSIR)

In this paper we describe a class of systems with constant group delay and symmetric impulse response. We extend the results of works made by Vucic and Babic (1998) that introduced this kind of systems in 1998. The proposed approach uses a new finite error function and works in the frequency domain. The systems obtained with the optimization procedure have better pole-Q's and their group delay have a maximally flat behavior. We use a MATLAB optimization tool package for our purposes.