On the performance analysis of ALE using an IIR lattice notch filter

Author

Cho, Nam Ik ; Lee, Sang Uk

Author_Institution

Dept. of Control & Instrum. Eng., Seoul Nat. Univ., South Korea

fYear

1990

fDate

3-6 Apr 1990

Firstpage

1245

Abstract

An attempt is made at a quantitative understanding of the ALE (adaptive line enhancer) using an adaptive IIR (infinite impulse response) lattice notch filter. The stability of the algorithm is discussed, and an expression for the asymptotic bias of the frequency estimate is provided. The transient behavior of the algorithm is investigated. It is verified by simulation that the analysis substantiates the fast convergent properties shown by N.I. Cho et al. (1989). The cascade structure for retrieving multiple sinusoids is also discussed. The simulation results indicate that the cascade structure based on the lattice ALE algorithm provides results comparable to those described in the recent literature with much less computational complexity (i.e. O(N) versus O(N²)), where N is the number of input sinusoids

Keywords

adaptive filters; digital filters; notch filters; IIR lattice notch filter; adaptive line enhancer; algorithm stability; asymptotic bias; cascade structure; computational complexity; frequency estimate; infinite impulse response; lattice ALE algorithm; multiple sinusoids; performance analysis; simulation results; transient behavior; Adaptive filters; Analytical models; Asymptotic stability; Computational complexity; Computational modeling; Frequency estimation; IIR filters; Lattices; Line enhancers; Performance analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 1990. ICASSP-90., 1990 International Conference on

Conference_Location

Albuquerque, NM

ISSN

1520-6149

Type

conf

DOI

10.1109/ICASSP.1990.115598

Filename

115598