Title
Analysis of an adaptive technique for modeling sparse systems
Abstract
An effective technique for modeling sparse systems has been developed, and the error surface of the system is analyzed with respect to estimation noise. The technique requires a type of adaptive filter which is called an adaptive delay filter. An implementation of the adaptive delay filter is discussed that includes adaptive gains in addition to variable delay taps. The filter is especially applicable to modeling systems with a sparse impulse response. Less computation is required for a sparse system than with the conventional approach. The technique is tested with a variety of unknown systems using both white noise input and autoregressive input. It is shown that it works properly for both sparse and nonsparse systems in noise-free and noisy conditions. The performance of the technique is verified by a careful analysis of the error surface and the techniques for delay determination and corresponding gain adaption
Year
DOI
Venue
1989
10.1109/29.21688
IEEE Trans. Acoustics, Speech, and Signal Processing
Keywords
Field
DocType
error surface,adaptive gains,delay determination,filtering and prediction theory,white noise input,estimation noise,delays,variable delay taps,autoregressive input,sparse impulse response,sparse systems,adaptive delay filter,adaptive technique,white noise,adaptive filter,nonsparse systems,least squares approximation,algorithm design and analysis,adaptive filters,noise reduction,modeling,impulse response
Error surface,Impulse response,Autoregressive model,Control theory,Computer science,White noise,Adaptive filter,Kernel adaptive filter,Computation
Journal
Volume
Issue
ISSN
37
2
0096-3518
Citations 
PageRank 
References 
21
9.87
6
Authors
2
Name
Order
Citations
PageRank
Yung-Fu Cheng12410.69
D. M. Etter25719.30