High‐Precision Direction‐of‐Arrival Estimations Using Digital Programmable Metasurface

Commonly, phased array antennas are used to provide spatial resolution for direction of arrival (DOA) estimations. However, the phase‐array‐based DOA estimations usually require complicated system architecture and signal processing. Digital programmable metasurfaces (DPMs) can realize flexible spatial modulations of electromagnetic (EM) waves without using massive transceivers, and hence can be used for DOA estimations with much simplified architectures. Here, a mechanism of DPM‐based DOA estimations at Ka band is proposed. A reflective DPM is designed to produce a series of dual beams in random, so as to establish a sensing matrix and sample the incident wave. Orthogonal matched pursuit algorithm is used to estimate DOA from the sparsely sampled datasets. The performances of the DPM‐based DOA estimations are demonstrated by simulations and experiments for the cases of single source and double sources. This work promotes the development of DPMs and is expected to find important applications in radar and wireless communication systems, as well as the joint radar and communication systems.

Standort
Deutsche Nationalbibliothek Frankfurt am Main
Umfang
Online-Ressource
Sprache
Englisch

Erschienen in
High‐Precision Direction‐of‐Arrival Estimations Using Digital Programmable Metasurface ; day:11 ; month:12 ; year:2021 ; extent:7
Advanced intelligent systems ; (11.12.2021) (gesamt 7)

Urheber
Wei Wang, Jia
Ai Huang, Zi
Xiao, Qiang
Han Li, Wei
Yang Li, Bai
Wan, Xiang
Jun Cui, Tie

DOI
10.1002/aisy.202100164
URN
urn:nbn:de:101:1-2021121114095592399861
Rechteinformation
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
Letzte Aktualisierung
15.08.2025, 07:32 MESZ

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Beteiligte

  • Wei Wang, Jia
  • Ai Huang, Zi
  • Xiao, Qiang
  • Han Li, Wei
  • Yang Li, Bai
  • Wan, Xiang
  • Jun Cui, Tie

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