Sampling and Generalized Almost Periodic Extension of Functions - Circuits and Systems II: Analog and Digital Signal Processing, IEEE Transactions on
نویسندگان
چکیده
This brief explores the connections between nonuniform sampling of a certain function and the almost periodic extension of its Fourier transform. It is shown that the Fourier transform of a bandlimited function can be extended (as a weighted sum of translates) as a Stepanoff almost periodic function, to the whole frequency axis. This result leads to a generalized nonuniform sampling theorem which, unlike previous results, does not require the continuity of the Fourier transform of the sampled function, and is valid for finite-energy band-limited functions.
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