Publication detail

A Comparison of Methods Recovering Signals from Non-Uniform Samples

MIHÁLIK, O. MESÁROŠOVÁ, M. ČELKO, J. SÝKORA, T. BRADÁČ, Z.

Original Title

A Comparison of Methods Recovering Signals from Non-Uniform Samples

Type

conference paper

Language

English

Original Abstract

Band-limited signals play a vital role in signal acquisition, transmission, processing and storage for decades. However, their recovery from non-uniformly spaced samples is still subject to discussion. There are multiple authors advancing different approaches and the user has to deal with an abundance of literature. Therefore, this paper offers a brief theoretical review of the most promising reconstruction methods. We also consider the importance of regularisation if the signal samples are noisy, which, surprisingly, seems to be neglected by many authors. Subsequently, the suitability of the methods is illustrated using an example of a real-world signal. Assessment of accuracy and speed of the methods is repeated for varying noise levels in signal amplitude, and for increasing degree of non-uniformities in sampling time. Cubic spline methods and sinc function reconstruction offer the best compromise between speed and accuracy for the concrete signal tested in this paper.

Keywords

bandlimited signal, resampling, regularisation, reconstruction

Authors

MIHÁLIK, O.; MESÁROŠOVÁ, M.; ČELKO, J.; SÝKORA, T.; BRADÁČ, Z.

Released

14. 8. 2024

Publisher

Elsevier

Location

Brno, Czechia

ISBN

2405-8963

Periodical

IFAC-PapersOnLine (ELSEVIER)

Year of study

58

Number

9

State

Kingdom of the Netherlands

Pages from

143

Pages to

148

Pages count

6

URL

https://www.sciencedirect.com/science/article/pii/S2405896324004750

BibTex

@inproceedings{BUT188805,
  author="Ondrej {Mihálik} and Michaela {Mesárošová} and Jakub {Čelko} and Tomáš {Sýkora} and Zdeněk {Bradáč}",
  title="A Comparison of Methods Recovering Signals from Non-Uniform Samples",
  booktitle="18th IFAC Conference on Programmable Devices and Embedded Systems – PDeS 2024.",
  year="2024",
  journal="IFAC-PapersOnLine (ELSEVIER)",
  volume="58",
  number="9",
  pages="143--148",
  publisher="Elsevier",
  address="Brno, Czechia",
  doi="10.1016/j.ifacol.2024.07.386",
  issn="2405-8963",
  url="https://www.sciencedirect.com/science/article/pii/S2405896324004750"
}