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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Efficient filtering structure for spline interpolation and decimation

Full text
Author(s):
Lamb, D. [1] ; Chamon, L. F. O. [1] ; Nascimento, V. H. [1]
Total Authors: 3
Affiliation:
[1] Univ Sao Paulo, Dept Elect Syst, BR-05508 Sao Paulo - Brazil
Total Affiliations: 1
Document type: Journal article
Source: ELECTRONICS LETTERS; v. 52, n. 1, p. 39-40, JAN 8 2016.
Web of Science Citations: 6
Abstract

An efficient structure for spline-based fractional delay filtering for interpolation/decimation is introduced. Inspired by the Newton structures for Lagrange interpolation, it requires less than half the number of operations of a typical Farrow implementation. Moreover, it displays better frequency response characteristics than Lagrange-based filters. To obtain this structure, a matrix form of the Farrow transfer function is proposed and used to derive state-space transformations between the Lagrange-Farrow structure and its Newton counterpart. These transformations are then applied to the spline polynomial, giving rise to the efficient Newton-like spline filtering method. (AU)

FAPESP's process: 14/04256-2 - Low-cost algorithms for parameter estimation
Grantee:Vitor Heloiz Nascimento
Support Opportunities: Regular Research Grants