Closed-form design of maximally flat FIR fractional delay filters
- 19 June 2006
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Signal Processing Letters
- Vol. 13 (7) , 405-408
- https://doi.org/10.1109/lsp.2006.872397
Abstract
Eight types of maximally flat finite impulse response (FIR) fractional delay filters are proposed. They are designed by separately approximating the real part and the imaginary part of the frequency response. Among these eight types of filters, two of them are equivalent to the existing design results in the open literature. Therefore, a more general closed-form design of the maximally flat FIR fractional delay filters is described in this letter, and some design examples of FIR fractional delay filters will be illustratedKeywords
This publication has 8 references indexed in Scilit:
- Results on Maximally Flat Fractional-Delay SystemsIEEE Transactions on Circuits and Systems I: Regular Papers, 2004
- Closed-form design of maximally flat FIR Hilbert transformers, differentiators, and fractional delayers by power series expansionIEEE Transactions on Circuits and Systems I: Regular Papers, 2001
- Variable Taylor realization and improved approximation of FIR fractional delay systemsInternational Journal of Circuit Theory and Applications, 1998
- FIR approximation of fractional sample delay systemsIEEE Transactions on Circuits and Systems II: Analog and Digital Signal Processing, 1996
- Splitting the unit delay [FIR/all pass filters design]IEEE Signal Processing Magazine, 1996
- A note on the fir approximation of a fractional sample delayInternational Journal of Circuit Theory and Applications, 1993
- Explicity formulas for weighting coefficients of maximally flat tunable FIR delaysElectronics Letters, 1992
- Recursive digital filters with maximally flat group delayIEEE Transactions on Circuit Theory, 1971