Design of Arbitrary FIR Log Eigenfilters
Journal
IEEE Transactions on Circuits and Systems II: Analog and Digital Signal Processing
Journal Volume
41
Journal Issue
5
Pages
361-364
Date Issued
1994
Author(s)
Shyu, J.-J.
Abstract
An efficient method is proposed for the design of FIR filters with arbitrary log magnitude and phase responses in this paper. The method is based on an iterative weighted eigenfilter approach to obtain a least-squares approximation to the given log magnitude function, and the weighting function at each iteration is updated using the result of the previous iteration, which leads to the optimal approximation in the log Chebyshev sense. The method can be easily modified to approximate arbitrary log complex-valued frequency response, such as complex FIR log eigenfilters. Several examples are shown to demonstrate the effectiveness of this approach.>
Type
journal article