A Systematic Comparison of Near-Field Beamforming and Fourier-Based Backward-Wave Holographic Imaging

Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review

Autoren

  • Sebastian Paul
  • Fabian Schwartau
  • Markus Krueckemeier
  • Reinhard Caspary
  • Carsten Monka-Ewe
  • Joerg Schoebel
  • Wolfgang Kowalsky

Organisationseinheiten

Externe Organisationen

  • Technische Universität Braunschweig
Forschungs-netzwerk anzeigen

Details

OriginalspracheEnglisch
Seiten (von - bis)921-931
Seitenumfang11
FachzeitschriftIEEE Open Journal of Antennas and Propagation
Jahrgang2
PublikationsstatusVeröffentlicht - 24 Aug. 2021

Abstract

In this paper we show the equivalence of near-field beamforming and backward-wave reconstruction algorithm. The proof is carried out analytically with two different approaches, using the principle of stationary phase from a signal processing point of view and the angular spectrum representation as an electromagnetic point of view. A comparison of the time complexity of the near-field beamforming and backward-wave reconstruction algorithm is given. A detailed discussion of the constraints required for a digital implementation is presented, leading to limitations for the chosen system parameters, especially for the backward-wave reconstruction approach. An exemplarily scenario is simulated and processed, confirming the found equivalence between the two very different approaches of image reconstruction. An additional measurement with a 120 GHz radar showcases the capabilities of both algorithms and validates our findings.

ASJC Scopus Sachgebiete

Zitieren

A Systematic Comparison of Near-Field Beamforming and Fourier-Based Backward-Wave Holographic Imaging. / Paul, Sebastian; Schwartau, Fabian; Krueckemeier, Markus et al.
in: IEEE Open Journal of Antennas and Propagation, Jahrgang 2, 24.08.2021, S. 921-931.

Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review

Paul, S, Schwartau, F, Krueckemeier, M, Caspary, R, Monka-Ewe, C, Schoebel, J & Kowalsky, W 2021, 'A Systematic Comparison of Near-Field Beamforming and Fourier-Based Backward-Wave Holographic Imaging', IEEE Open Journal of Antennas and Propagation, Jg. 2, S. 921-931. https://doi.org/10.1109/OJAP.2021.3107444
Paul, S., Schwartau, F., Krueckemeier, M., Caspary, R., Monka-Ewe, C., Schoebel, J., & Kowalsky, W. (2021). A Systematic Comparison of Near-Field Beamforming and Fourier-Based Backward-Wave Holographic Imaging. IEEE Open Journal of Antennas and Propagation, 2, 921-931. https://doi.org/10.1109/OJAP.2021.3107444
Paul S, Schwartau F, Krueckemeier M, Caspary R, Monka-Ewe C, Schoebel J et al. A Systematic Comparison of Near-Field Beamforming and Fourier-Based Backward-Wave Holographic Imaging. IEEE Open Journal of Antennas and Propagation. 2021 Aug 24;2:921-931. doi: 10.1109/OJAP.2021.3107444
Paul, Sebastian ; Schwartau, Fabian ; Krueckemeier, Markus et al. / A Systematic Comparison of Near-Field Beamforming and Fourier-Based Backward-Wave Holographic Imaging. in: IEEE Open Journal of Antennas and Propagation. 2021 ; Jahrgang 2. S. 921-931.
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