DocumentCode
1288814
Title
An IIR adaptive line enhancer with controlled bandwidth
Author
Farhang-Boroujeny, B.
Author_Institution
Dept. of Electr. Eng., Nat. Univ. of Singapore, Singapore
Volume
45
Issue
2
fYear
1997
fDate
2/1/1997 12:00:00 AM
Firstpage
477
Lastpage
481
Abstract
A previously proposed IIR adaptive line enhancer (ALE) is explored further. We propose a mechanism for controlling the bandwidth of the ALE in an adaptive manner. The proposed mechanism increases the bandwidth of the ALE whenever its peak is not close to a spectral line of the input signal to assure its fast convergence and decreases the bandwidth of the ALE when its peak matches a spectral line of the input signal to enhance that spectral line further. In addition, a new algorithm for robust adaptation of the ALE is proposed
Keywords
IIR filters; adaptive filters; adaptive signal processing; filtering theory; spectral analysis; IIR adaptive line enhancer; algorithm; controlled bandwidth; fast convergence; input signal; robust adaptation; spectral line; Adaptive control; Bandwidth; Equations; Finite impulse response filter; IIR filters; Line enhancers; Nonlinear filters; Programmable control; Signal to noise ratio; White noise;
fLanguage
English
Journal_Title
Signal Processing, IEEE Transactions on
Publisher
ieee
ISSN
1053-587X
Type
jour
DOI
10.1109/78.554313
Filename
554313
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