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Time-range FDA beampattern characteristics

Jia, Wenkai ; Jakobsson, Andreas LU orcid and Wang, Wen Qin (2024) In Signal Processing 218.
Abstract

Current literature show that frequency diverse arrays (FDAs) are able of producing range–angle-dependent and time-variant transmit beampatterns, but the resulting time and range dependencies and their characteristics are still not well understood. This paper examines the FDA transmission model with an emphasis on analyzing the beam auto-scanning characteristics and the equivalence with the MIMO beampatterns taking into account their time-range relationship. We present the FDA instantaneous transmit beampattern, describing the auto-scanning capability of the FDA transmit beams. The scan speed, scan volume, and initial mainlobe direction of the beams are also analyzed. In addition, the equivalent conditions for the FDA integral transmit... (More)

Current literature show that frequency diverse arrays (FDAs) are able of producing range–angle-dependent and time-variant transmit beampatterns, but the resulting time and range dependencies and their characteristics are still not well understood. This paper examines the FDA transmission model with an emphasis on analyzing the beam auto-scanning characteristics and the equivalence with the MIMO beampatterns taking into account their time-range relationship. We present the FDA instantaneous transmit beampattern, describing the auto-scanning capability of the FDA transmit beams. The scan speed, scan volume, and initial mainlobe direction of the beams are also analyzed. In addition, the equivalent conditions for the FDA integral transmit beampattern and the multiple-input multiple-output (MIMO) beampattern are investigated. Various numerical simulations illustrate the auto-scanning property of the FDA beampattern and the proposed equivalent relationship with the MIMO beampattern, providing a foundation for a better understanding and application of the FDA transmit beam.

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author
; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Auto-scanning capability, Frequency diverse array (FDA), Range–time relations, Time-variant beampattern, Transmit beampattern
in
Signal Processing
volume
218
article number
109393
publisher
Elsevier
external identifiers
  • scopus:85182725954
ISSN
0165-1684
DOI
10.1016/j.sigpro.2024.109393
language
English
LU publication?
yes
id
34047129-6347-4f14-ac79-80f76ced04f1
date added to LUP
2024-02-20 15:22:38
date last changed
2024-02-20 15:24:05
@article{34047129-6347-4f14-ac79-80f76ced04f1,
  abstract     = {{<p>Current literature show that frequency diverse arrays (FDAs) are able of producing range–angle-dependent and time-variant transmit beampatterns, but the resulting time and range dependencies and their characteristics are still not well understood. This paper examines the FDA transmission model with an emphasis on analyzing the beam auto-scanning characteristics and the equivalence with the MIMO beampatterns taking into account their time-range relationship. We present the FDA instantaneous transmit beampattern, describing the auto-scanning capability of the FDA transmit beams. The scan speed, scan volume, and initial mainlobe direction of the beams are also analyzed. In addition, the equivalent conditions for the FDA integral transmit beampattern and the multiple-input multiple-output (MIMO) beampattern are investigated. Various numerical simulations illustrate the auto-scanning property of the FDA beampattern and the proposed equivalent relationship with the MIMO beampattern, providing a foundation for a better understanding and application of the FDA transmit beam.</p>}},
  author       = {{Jia, Wenkai and Jakobsson, Andreas and Wang, Wen Qin}},
  issn         = {{0165-1684}},
  keywords     = {{Auto-scanning capability; Frequency diverse array (FDA); Range–time relations; Time-variant beampattern; Transmit beampattern}},
  language     = {{eng}},
  publisher    = {{Elsevier}},
  series       = {{Signal Processing}},
  title        = {{Time-range FDA beampattern characteristics}},
  url          = {{http://dx.doi.org/10.1016/j.sigpro.2024.109393}},
  doi          = {{10.1016/j.sigpro.2024.109393}},
  volume       = {{218}},
  year         = {{2024}},
}