Detail publikačního výsledku

A Comparison of Methods Recovering Signals from Non-Uniform Samples

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

Originální název

A Comparison of Methods Recovering Signals from Non-Uniform Samples

Anglický název

A Comparison of Methods Recovering Signals from Non-Uniform Samples

Druh

Stať ve sborníku v databázi WoS či Scopus

Originální abstrakt

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.

Anglický abstrakt

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.

Klíčová slova

bandlimited signal, resampling, regularisation, reconstruction

Klíčová slova v angličtině

bandlimited signal, resampling, regularisation, reconstruction

Autoři

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

Rok RIV

2025

Vydáno

14.08.2024

Nakladatel

Elsevier

Místo

Brno, Czechia

Kniha

18th IFAC Conference on Programmable Devices and Embedded Systems – PDeS 2024.

ISSN

2405-8963

Periodikum

IFAC-PapersOnLine

Svazek

58

Číslo

9

Stát

Spojené království Velké Británie a Severního Irska

Strany od

143

Strany do

148

Strany počet

6

URL

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

Plný text v Digitální knihovně

http://hdl.handle.net/11012/249740

BibTex

@inproceedings{BUT188805,
  author="Ondrej {Mihálik} and Michaela {Hečková} 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",
  volume="58",
  number="9",
  pages="143--148",
  publisher="Elsevier",
  address="Brno, Czechia",
  doi="10.1016/j.ifacol.2024.07.386",
  issn="2405-8971",
  url="https://www.sciencedirect.com/science/article/pii/S2405896324004750"
}

Dokumenty

AComparisonofMethodsRecoveringSignalsfromNon-UniformSamples
1-s2.0-S2405896324004750-main