Paper Info
Title
Variable Fractional Delay Fir Filters With Sparse Coefficients
Abstract
Implementing a variable fractional delay (VFD) filter in Farrow model is costly as each coefficient of a VFD filter is a polynomial rather than a numerical scalar as in a conventional digital filter. This paper presents a method for the design of VFD filters with sparse coefficients which admits efficient implementation. The design is accomplished in two phases with the first phase identifying locations in polynomial impulse response that are suitable to be set to zero and the second phase optimizing the remaining nonzero coefficients so as for the VFD filter to best approximate a desired frequency response. Performance evaluation and comparison of the proposed algorithm relative to an equivalent nonsparse counterpart are also presented.
Year
DOI
Venue
2012
10.1109/ISCAS.2012.6272156
2012 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS (ISCAS 2012)
Keywords
Field
DocType
indexes,vectors,fir filter,fir filters,polynomials,algorithm design and analysis,digital filter,finite impulse response filter,design methodology,frequency response
Impulse response,Frequency response,Digital filter,Algorithm design,Polynomial,Control theory,Nonzero coefficients,Scalar (physics),Electronic engineering,Finite impulse response,Mathematics
Conference
ISSN
Citations 
PageRank 
0271-4302
4
0.46
References 
Authors
5
2
Name
Order
Citations
PageRank
Wu-Sheng Lu129624.90
Takao Hinamoto215850.09