Title
Exponential approximation of multivariate bandlimited functions from average oversampling
Abstract
Instead of sampling a function at a single point, average sampling takes the weighted sum of function values around the point. Such a sampling strategy is more practical and more stable. In this note, we present an explicit method with an exponentially-decaying approximation error to reconstruct a multivariate bandlimited function from its finite average oversampling data. The key problem in our analysis is how to extend a function so that its inverse Fourier transform decays at an optimal rate to zero at infinity.
Year
DOI
Venue
2014
10.1080/00036811.2020.1728258
APPLICABLE ANALYSIS
Keywords
Field
DocType
Average sampling, exponential decayness, multivariate bandlimited functions, the Shannon sampling theorem
Mathematical optimization,Exponential function,Bandlimiting,Oversampling,Mathematical analysis,Multivariate statistics,Infinity,Fourier transform,Sampling (statistics),Approximation error,Mathematics
Journal
Volume
Issue
ISSN
101
1
0003-6811
Citations 
PageRank 
References 
0
0.34
5
Authors
2
Name
Order
Citations
PageRank
Wenjian Chen100.34
Haizhang Zhang200.34