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Accuracy of spike-train Fourier reconstruction for colliding nodes

Andrey Akinshin, Dmitry Batenkov, Yosef Yomdin

Research output: Contribution to journalConference articlepeer-review

Abstract

We consider a signal reconstruction problem for signals F of the form F(x) = Sigma(d)(j=1) a(j)delta (x - x(j)) from their Fourier transform F(F)(s) = integral(infinity)(-infinity) F(x)e(-isx) dx. We assume F(F)(s) to be known for each s is an element of [-N, N] with an absolute error not exceeding epsilon > 0. We give an absolute lower bound (which is valid with any reconstruction method) for the "worst case" reconstruction error of F from.F(F) for situations where the x(j) nodes are known to form an 1 elements cluster contained in an interval of length h
Original languageEnglish
Pages (from-to)617-621
Number of pages5
Journal2015 INTERNATIONAL CONFERENCE ON SAMPLING THEORY AND APPLICATIONS (SAMPTA)
StatePublished - 2015
EventInternational Conference on Sampling Theory and Applications (SampTA) - Washington, United States
Duration: 25 May 201529 May 2015
Conference number: 2015

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