Quadratic spline interpolator
- 1 October 1996
- journal article
- research article
- Published by Taylor & Francis in International Journal of Systems Science
- Vol. 27 (10) , 977-983
- https://doi.org/10.1080/00207729608929301
Abstract
A simple system is proposed which generates a quadratic spline function interpolating a given discrete-time signal. It works as a D-A converter which is free from phase distortions and whose output is smooth. The output is constructed as two-fold integration of a staircase signal. A kind of sampled data feedback is employed to stabilize the system. Its circuit is mainly composed of a pair of D-A and A-D converter chips and two analogue integrators. This hardware complexity is about a quarter of current systems.Keywords
This publication has 4 references indexed in Scilit:
- A smooth signal generator based on quadratic B-spline functionsIEEE Transactions on Signal Processing, 1995
- A quadratic spline function generatorIEEE Transactions on Acoustics, Speech, and Signal Processing, 1989
- Spline function approach to digital signal processingInternational Journal of Systems Science, 1988
- Contributions to the problem of approximation of equidistant data by analytic functions. Part A. On the problem of smoothing or graduation. A first class of analytic approximation formulaeQuarterly of Applied Mathematics, 1946