Title :
Full tunable digital heterodyne IIR filters
Author :
Nelson, Karl E. ; Soderstrand, Michael A.
Author_Institution :
Dept. of Electr. & Comput. Eng., California Univ., Davis, CA, USA
Abstract :
A new digital heterodyne filter is proposed that allows a prototype IIR or FIR filter to be shifted through the entire range of digital frequencies from DC to the Nyquist frequency. The unique properties of this new tunable filter are the range of tunability and the fact that all images created by the heterodyne process are cancelled. The proposed heterodyne filter is suitable both as a tunable filter and for use with standard adaptive algorithms to design adaptive digital filters-especially adaptive notch filters
Keywords :
IIR filters; adaptive filters; circuit tuning; digital filters; notch filters; IIR filters; adaptive digital filters; adaptive notch filters; digital heterodyne filter; digital signal processing; tunability range; tunable filter; Adaptive algorithm; Adaptive filters; Attenuation; Digital filters; Finite impulse response filter; Frequency; IIR filters; Interference; Narrowband; Prototypes;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1999. Proceedings., 1999 IEEE International Conference on
Conference_Location :
Phoenix, AZ
Print_ISBN :
0-7803-5041-3
DOI :
10.1109/ICASSP.1999.756178
