Title :
A new algorithm for adaptive notch filter with sub-band filtering
Author :
Kinugasa, Y. ; Okello, J. ; Itoh, Y. ; Kobayashi, Masato ; Fukui, Y.
Author_Institution :
Dept. of Electr. Eng., Matsue Coll. of Technol., Japan
Abstract :
We propose a new algorithm for adaptive notch filter, which is useful for the detection of multiple unknown sinusoids embedded in the broadband signal. The adaptive notch filter is constructed using cascades of second order notch filter, while the algorithm incorporates sub-band filtering and decimation. From the simulation results provided, we observe an increase in the convergence speed and good estimation accuracy in comparison to the conventional type
Keywords :
adaptive filters; all-pass filters; cascade networks; convergence of numerical methods; filtering theory; least mean squares methods; notch filters; transfer functions; adaptive notch filter; algorithm convergence speed; all-pass filters; broadband signal; decimation; down sampling; multiple unknown sinusoids detection; second order notch filter cascades; subband filtering; transfer function; Adaptive filters; Adaptive signal detection; Bandwidth; Convergence; Educational institutions; Electronic mail; Filtering algorithms; Frequency; IIR filters; Transfer functions;
Conference_Titel :
Circuits and Systems, 2001. ISCAS 2001. The 2001 IEEE International Symposium on
Conference_Location :
Sydney, NSW
Print_ISBN :
0-7803-6685-9
DOI :
10.1109/ISCAS.2001.921196
