@inproceedings{36f0813f57534322a3195e07afc46f4c,
title = "A new technique for intializing digital IIR filters at two frequencies",
abstract = "Single frequency initialization of a second order digital IIR filter will result in forcing the filter to reach the steady state at either the positive or negative notch frequency and forcing the resultant transient frequency response to be unsymmetrical. This paper deals with a new technique for initializing digital filters at both frequencies and keeping the symmetry in the frequency response. This is achieved by realizing the second order real digital filter by using two complex first order sections. The internal memories of these filters are initially loaded by their steady state values for a given frequency. An initialization processor is used to calculate the steady state values from the first received sample. This resulted in improving the rejection characteristic of the notch filter. The new technique was also extended to complex filters where steady state characteristic is enforced at two different frequencies in the stop band.",
author = "Hussain Al-Ahmad and Reyad El-Khazali",
year = "2003",
doi = "10.1109/ICECS.2003.1301977",
language = "British English",
isbn = "0780381637",
series = "Proceedings of the IEEE International Conference on Electronics, Circuits, and Systems",
pages = "64--67",
booktitle = "ICECS 2003 - Proceedings of the 2003 10th IEEE International Conference on Electronics, Circuits and Systems",
note = "2003 10th IEEE International Conference on Electronics, Circuits and Systems, ICECS2003 ; Conference date: 14-12-2003 Through 17-12-2003",
}