Title :
A frequency-domain characterization of interpolation from nonuniformly spaced data
Author :
Kakazu, Gary ; Munson, David C., Jr.
Author_Institution :
Illinois Univ., Urbana, IL, USA
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 :
frequency-domain analysis; information theory; interpolation; signal processing; 2D filter design techniques; 2D frequency sampling design; frequency-domain characterization; interpolation; linear time-varying model; nonuniformly spaced data; one-dimensional interpolators; signal processing; two-dimensional digital filter; Application software; Computed tomography; Digital filters; Fourier transforms; Frequency; Image reconstruction; Interpolation; Signal processing; Signal sampling; Time varying systems;
Conference_Titel :
Circuits and Systems, 1989., IEEE International Symposium on
Conference_Location :
Portland, OR
DOI :
10.1109/ISCAS.1989.100347
