Real-time interpolation with cubic splines and polyphase networks

Author

de Carvalho, Jose M. ; Hanson, J.V.

Author_Institution

Dept. de Engenharia Electrica-CCT, Univ. Federal da Paraiba, Campina Grande, Brazil

Volume

11

Issue

2

fYear

1986

fDate

4/1/1986 12:00:00 AM

Firstpage

64

Lastpage

72

Abstract

Deals with the development of a new approach to the problem of real-time interpolation of digital signals. Whereas the traditional methods of performing this operation make use of digital filters (FIR or IIR), this approach utilizes local cubic polynomial interpolative routines known as cubic spline functions. By using cubic splines, an algorithm has been obtained which can be implemented in a simple and economical way, yielding the desired real-time interpolator. The properties of this system include conceptual and structural simplicity, local control, speed of operation, and versatility.

Keywords

digital signals; interpolation; signal processing; splines (mathematics); cubic splines; digital signals; local control; local cubic polynomial interpolative routines; operation speed; polyphase networks; real-time interpolation; simplicity; versatility; Finite impulse response filters; IIR filters; Interpolation; Polynomials; Real-time systems; Splines (mathematics);

fLanguage

English

Journal_Title

Electrical Engineering Journal, Canadian

Publisher

ieee

ISSN

0700-9216

Type

jour

DOI

10.1109/CEEJ.1986.6593746

Filename

6593746