Colours of Velvet Noise

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Journal Title
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Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Date
2022-06
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Language
en
Pages
3
495 - 497
Series
Electronics Letters, Volume 58, issue 12
Abstract
Velvet noise is a sparse ternary pseudo-random signal containing only a small portion of non-zero values. In this work, the derivation of the spectral properties of velvet noise is presented. In particular, it is shown that the original velvet noise is white, i.e. has a constant power spectrum. For velvet noise variants with altered probability of polarity, the spectral characteristics are analytically derived. Crushed additive velvet noise is shown to have potential in the design of coloured sparse noise sequences, which are useful in acoustic signal processing.
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Citation
Meyer-Kahlen , N , Schlecht , S & Välimäki , V 2022 , ' Colours of Velvet Noise ' , Electronics Letters , vol. 58 , no. 12 , pp. 495 - 497 . https://doi.org/10.1049/ell2.12501