Title :
Even-odd structure and parallel structure for implementing variable fractional-delay filters
Author_Institution :
Dept. of Inf. Sci., Toho Univ., Chiba, Japan
Abstract :
The problem of designing 1D variable fractional-delay (VFD) digital filter can be elegantly simplified as the easier sub-problems that involve 1D constant filter (sub-filter) designs and 1D polynomial approximations by utilizing the singular-value-decomposition (SVD) of the variable design specification. This paper proposes two new structures for efficiently implementing the SVD-based VFD filters, which require less computational complexity than the Farrow structure.
Keywords :
computational complexity; delays; digital filters; polynomials; singular value decomposition; Farrow structure; computational complexity; digital filter; even-odd structure; filter design; parallel structure; polynomial approximations; singular value decomposition; subfilter design; variable design specification; variable fractional-delay filters; Computational complexity; Design methodology; Digital filters; Digital signal processing; Electronic mail; Information filtering; Information filters; Information science; Polynomials; Timing;
Conference_Titel :
Circuits and Systems, 2004. MWSCAS '04. The 2004 47th Midwest Symposium on
Print_ISBN :
0-7803-8346-X
DOI :
10.1109/MWSCAS.2004.1354170
