Title
Solution To The Weight Extraction Problem In Fast Qr-Decomposition Rls Algorithms
Abstract
Fast QR decomposition RLS (FQRD-RLS) algorithms are well known for their good numerical properties and low computational complexity. However, the FQRD-RLS algorithms do not provide access to the filter weights, and so far their use has been limited to problems seeking an estimate of the output error signal. In this paper we present a novel technique to obtain the filter weights of the FQRD-RLS algorithm at any time instant. As a consequence, we extend the range of applications to include problems where explicit knowledge of the filter weights is required. The proposed weight extraction technique is tested in a system identification setup. The results verify our claim that the extracted coefficients of the FQRD-RLS algorithm are identical to those obtained by any RLS algorithm such as the inverse QRD-RLS algorithm.
Year
DOI
Venue
2006
10.1109/ICASSP.2006.1660718
2006 IEEE International Conference on Acoustics, Speech and Signal Processing, Vols 1-13
Keywords
Field
DocType
computational complexity,system identification,qr decomposition,recursive least squares,adaptive filters,error correction,explicit knowledge,feature extraction,robustness
Explicit knowledge,Computer science,Artificial intelligence,Adaptive filter,System identification,QR decomposition,Inverse,Mathematical optimization,Pattern recognition,Algorithm,Feature extraction,Recursive least squares filter,Computational complexity theory
Conference
ISSN
Citations 
PageRank 
1520-6149
0
0.34
References 
Authors
4
4
Name
Order
Citations
PageRank
Mobien Shoaib1306.02
Stefan Werner21545124.74
José Antonio Apolinário314521.29
Timo I. Laakso412934.24