Title :
Design of IIR notch filters with different passband gains
Author :
Joshi, Y.V. ; Roy, S. C Dutta
Author_Institution :
Dept. of Electr. Eng., Indian Inst. of Technol., New Delhi, India
fDate :
2/1/1998 12:00:00 AM
Abstract :
A method is proposed for the design of infinite-duration impulse response (IIR) notch filters with different passband gains using the standard lowpass IIR digital-filter design methods. This method satisfies the notch-frequency specification exactly and realises a rejection bandwidth, defined by the frequencies at which the gain is 3 dB below the lower of the two passband gains, which is smaller than that specified. Illustrative examples are given
Keywords :
IIR filters; band-pass filters; digital filters; notch filters; signal processing; IIR notch filters; design; frequencies; infinite-duration impulse response notch filters; notch-frequency specification; passband gains; rejection bandwidth; standard lowpass IIR digital-filter design methods;
Journal_Title :
Vision, Image and Signal Processing, IEE Proceedings -
DOI :
10.1049/ip-vis:19981687
