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Journal of Fourier Analysis and Applications

, Volume 24, Issue 4, pp 935–956 | Cite as

Discrete Uncertainty Principles and Sparse Signal Processing

  • Afonso S. Bandeira
  • Megan E. Lewis
  • Dustin G. Mixon
Article
  • 248 Downloads

Abstract

We develop new discrete uncertainty principles in terms of numerical sparsity, which is a continuous proxy for the 0-norm. Unlike traditional sparsity, the continuity of numerical sparsity naturally accommodates functions which are nearly sparse. After studying these principles and the functions that achieve exact or near equality in them, we identify certain consequences in a number of sparse signal processing applications.

Keywords

Uncertainty principle Sparsity Compressed sensing 

Notes

Acknowledgements

The authors thank Laurent Duval, Joel Tropp, and the anonymous referees for multiple suggestions that significantly improved the presentation of our results and our discussion of the relevant literature. ASB was supported by AFOSR Grant No. FA9550-12-1-0317. DGM was supported by an AFOSR Young Investigator Research Program award, NSF Grant No. DMS-1321779, and AFOSR Grant No. F4FGA05076J002. The views expressed in this article are those of the authors and do not reflect the official policy or position of the United States Air Force, Department of Defense, or the U.S. Government.

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Copyright information

© Springer Science+Business Media, Inc. (outside the US) 2017

Authors and Affiliations

  • Afonso S. Bandeira
    • 1
  • Megan E. Lewis
    • 2
  • Dustin G. Mixon
    • 3
  1. 1.Department of Mathematics, Courant Institute of Mathematical SciencesNew York UniversityNew YorkUSA
  2. 2.Detachment 5, Air Force Operational Test and Evaluation CenterEdwards AFBUSA
  3. 3.Department of Mathematics and StatisticsAir Force Institute of TechnologyWright-Patterson AFBUSA

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