Tailoring MIMO transfer of sound using reflective reconfigurable intelligent surfaces

Hongkuan Zhang, Qiyuan Wang, Guancong Ma*

*Corresponding author for this work

Research output: Chapter in book/report/conference proceedingConference proceedingpeer-review

Abstract

Acoustic signals emitted by multiple sources in a room are mixed together due to reverberation, resulting in a loss of intelligibility of speech. Here, we demonstrate that the acoustic channel matrix among multiple inputs and outputs can be controlled with reflective reconfigurable intelligent surfaces by the mean of wavefield shaping. We show how 2×2 and 4×2 channels can be customized almost at will. This research has many potential applications, including scenarios such as enhanced indoor speech communications and recognition.

Original languageEnglish
Title of host publicationMETA 2023 Paris - France
Subtitle of host publicationThe 13th International Conference on Metamaterials, Photonic Crystals and Plasmonics, Proceedings
EditorsPhilippe Lalanne, Said Zouhdi
PublisherMETA Conference
Pages497-498
Number of pages2
Publication statusPublished - 18 Jul 2023
Event13th International Conference on Metamaterials, Photonic Crystals and Plasmonics, META 2023 - Paris, France
Duration: 18 Jul 202321 Jul 2023
https://metaconferences.org/META23/files/meta23_proceedings.pdf

Publication series

NameInternational Conference on Metamaterials, Photonic Crystals and Plasmonics
ISSN (Print)2429-1390

Conference

Conference13th International Conference on Metamaterials, Photonic Crystals and Plasmonics, META 2023
Country/TerritoryFrance
CityParis
Period18/07/2321/07/23
Internet address

Scopus Subject Areas

  • Electrical and Electronic Engineering
  • Materials Science (miscellaneous)
  • Electronic, Optical and Magnetic Materials
  • Materials Chemistry

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