Further Results on the WLS Design of Variable Fractional Delay Filters
Access Status
Fulltext not available
Authors
Chu, Kevin
Leung, Yee-hong
Date
2012Type
Conference Paper
Metadata
Show full item recordCitation
Chu, Chuan-Wei Kevin and Leung, Yee-Hong. 2012. Further Results on the WLS Design of Variable Fractional Delay Filters, in Wysocki, T. (ed), Proceedings of the 6th International Conference on Signal Processing and Communication Systems (ICSPCS), Dec 12-14 2012. Gold Coast, Australia: WITSP.
Source Title
Proc. 6th International Conference on Signal Processing and Communication Systems ICSPCS'2012
Source Conference
6th International Conference on Signal Processing and Communication Systems ICSPCS'2012
ISBN
Collection
Abstract
The weighted least-squares design of Farrow-based variable fractional delay filters is known to suffer from numerical difficulties which can lead to design failures. In this paper, we derive a set of analytical expressions to overcome these difficulties. The analytical expressions also allow us to prove conclusively a number of properties that previous researchers have claimed regarding the design of variable fractional delay filters. We also unify under a common framework the various weighted least-squares design formulations that have been proposed and studied.
Related items
Showing items related by title, author, creator and subject.
-
Chu, Chuan-Wei Kevin (2017)Variable fractional delay filters allow the delay of a filter to be varied continuously over an interval without the need to redesign the filter. A popular structure to implement these filters is the Farrow structure. ...
-
Dam, Hai Huyen Heidi (2014)This letter develops an efficient computational procedure for the design of an odd-order variable fractional delay (VFD) digital filter with minimum peak variable fractional delay error subject to restrictions on the peak ...
-
Lee, Wei; Caccetta, Louis; Rehbock, Volker (2008)This paper presents a computational method for the optimal design of all-pass variable fractional-delay (VFD) filters aiming to minimize the squared error of the fractional group delay subject to a low level of squared ...