A technique for transient suppression of IIR notch filter
Journal
ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
Journal Volume
3
Pages
III209-III212
Date Issued
1994-04
Date
1994-04
Author(s)
Tseng, Chien-Cheng
Abstract
In this paper, a technique for suppressing the transient states of IIR notch filters is presented. This technique mainly uses the vector projection to find the good initialization of a notch filter. When a notch filter is used to cancel 60 Hz interference in the recording of electrocardiograms (ECG), the performance of the notch filter with transient suppression is better than that of the notch filter with arbitrary initialization. The improvements realized by this technique is at the cost of little additional computational load at the beginning of filtering. © 1994 IEEE.
Other Subjects
Electrocardiography; IIR filters; Signal processing; Computational loads; IIR notch filters; Transient state; Transient suppression; Vector projection; Notch filters
Type
journal article
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