Design of an equiripple FIR notch filter using a multiple exchange algorithm
Resource
Signal Processing 75 (3): 225-237
Journal
Signal Processing
Journal Volume
75
Journal Issue
3
Pages
225-237
Date Issued
1999-06
Author(s)
C. C. Tseng
Abstract
This paper presents a multiple exchange algorithm for designing linear phase equiripple FIR notch filters. The algorithm is first discussed for designing a single notch filter. Compared with conventional linear programming methods, the design speed can be improved significantly. Then, two modified algorithms are developed to reduce the ripple in the low-frequency passband because the energy of biomedical ECG signals is usually occupied in the low-frequency band. Next, we extend the proposed algorithm to design an equiripple multiple-notch filter. Finally, several design examples are presented to demonstrate its effectiveness.
SDGs
Type
journal article