Interpolation and extrapolation in nonuniform sampling sequences with average sampling rates below the Nyquist rate
T. Fjällbrant · Electronics Letters · 1975
Coefficients for interpolation and extrapolation, including average sampling rates below the Nyquist rate, have been derived. The method is applicable for nonuniform patterns obtained through omission of samples in a uniform pattern with a sampling rate slightly higher than the Nyquist rate. The interpolations and extrapolations are valid for band-limited signals, except those theoretical signals that are zero valued at all sampling points.