Irregular and multi--channel sampling of operators

Details Irregular and multi--channel sampling of operators Irregular and multi--channel sampling of operators

2009-03-05

arxiv.org/abs/0903.1082v1

Mathematics

Functional Analysis

Scientific paper

The classical sampling theorem for bandlimited functions has recently been generalized to apply to so-called bandlimited operators, that is, to operators with band-limited Kohn-Nirenberg symbols. Here, we discuss operator sampling versions of two of the most central extensions to the classical sampling theorem. In irregular operator sampling, the sampling set is not periodic with uniform distance. In multi-channel operator sampling, we obtain complete information on an operator by multiple operator sampling outputs.

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