The extrapolation of band-limited signals in L2with sampling errors

Autor: Xingwei, Zhou, Xianggen, Xia
Zdroj: Approximation Theory and its Applications; September 1989, Vol. 5 Issue: 3 p15-21, 7p
Abstrakt: In this paper we will provide a theory for an extrapolation algorithm of band-limited signals with sampling errors or low noises. The main result is as follows: Suppose thatf(t)is in L2and is a continuous Ω band-limited signal. Then for any positive numbers T, A(>T) and ε, there exists a δ>0 such that when the sampling errors (or noises) off(t)on [−T, T] is less than δ we can extrapolate the values off(t)on the interval [−A, A] such that the difference between the extrapolated value and the exact value off(t)does not exceed ε.
Databáze: Supplemental Index