Higher order sampling and recovering of lowpass signals
Gessé Eduardo Calvo Nogueira, A. Ferreira · IEEE Transactions on Signal Processing · 2000
A higher order sampling function applied to lowpass signals is described. To recover the original signal from its periodic nonuniform samples, a formulation of the sampling function is introduced, based on the occurrence of local gaps in the sampled signal spectrum. As a result, the interpolant is greatly simplified.