Title :
A gradient algorithm for complex adaptive notch filters
Author :
Yong, Wang ; Kechu, Yi ; Ying xiaofan
Author_Institution :
State Key Lab on ISN, Xidian Univ., Xi´´an, China
fDate :
31 Aug.-4 Sept. 2004
Abstract :
This paper proposes a novel gradient algorithm for complex adaptive IIR notch filters with constrained poles and zeros. We applied the algorithm to a high-order adaptive notch filter structure with matrix form, which consists of first-order filters. Computer simulation shows that the convergence speed of the adaptive algorithm is faster than the conventional ones, moreover the stability of the resulted adaptive filters is sure.
Keywords :
IIR filters; adaptive filters; gradient methods; notch filters; poles and zeros; IIR notch filter; complex adaptive notch filter; first-order filter; gradient algorithm; poles and zeros; Adaptive filters; Adaptive signal detection; Bandwidth; Convergence; Distortion; Equations; Finite impulse response filter; IIR filters; Interference; Poles and zeros;
Conference_Titel :
Signal Processing, 2004. Proceedings. ICSP '04. 2004 7th International Conference on
Print_ISBN :
0-7803-8406-7
DOI :
10.1109/ICOSP.2004.1452702
