A frequency-domain characterization of interpolation from nonuniformly spaced data
- 13 January 2003
- proceedings article
- Published by Institute of Electrical and Electronics Engineers (IEEE)
Abstract
A linear time-varying (LTV) framework for modeling interpolation from nonuniformly spaced samples is described. This LTV model is used to obtain a frequency-domain description of the interpolation process. The frequency-domain characteristics of a number of commonly used interpolators are presented. In addition, this frequency-domain description permits the design of one-dimensional interpolators through the use of two-dimensional digital filter design techniques. A two-dimensional frequency sampling design approach is explored in an attempt to better approximate the ideal interpolator.Keywords
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