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
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