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Superresolution based on the methods of extrapolation
University of Gävle, Faculty of Engineering and Sustainable Development, Department of Electronics, Mathematics and Natural Sciences.
2015 (English)In: PIERS 2015 Prague: Progress in Electromagnetics Research Symposium : Proceedings, Cambridge, MA: The Electromagnetics Academy , 2015, 1548-1551 p.Conference paper, Published paper (Refereed)
Abstract [en]

A new method of signal processing by smart antennas is proposed and justified. It allows to improve the accuracy of angle measurement and to restore the image of the object with superresolution. The method is based on the extrapolation of the signals received by each element of the antenna array, outside the aperture. This allows introducing new virtual elements and thus synthesizing significantly larger antenna array. The method is tested in numerical experiments using a mathematical model and the maximum effective angular resolution is found for different cases and objects. Algorithms based on the method of digital aperture synthesis provide angular superresolution 3-7 times greater than that according to the Rayleigh criterion for a signal/noise ratio of 12-13 dB.

Place, publisher, year, edition, pages
Cambridge, MA: The Electromagnetics Academy , 2015. 1548-1551 p.
Keyword [en]
Antenna arrays, Antennas, Extrapolation, Optical resolving power, Signal processing, Angular resolution, Aperture synthesis, Numerical experiments, Rayleigh criterion, Signal/noise ratio, Super resolution, Virtual elements, Numerical methods
National Category
Computational Mathematics Signal Processing
Identifiers
URN: urn:nbn:se:hig:diva-20774Scopus ID: 2-s2.0-84947227942ISBN: 978-1-934142-30-1 (print)OAI: oai:DiVA.org:hig-20774DiVA: diva2:876448
Conference
Progress in Electromagnetics Research Symposium, 6-9 July 2015, Prague, Czech Republic
Available from: 2015-12-03 Created: 2015-12-03 Last updated: 2015-12-03Bibliographically approved

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Shestopalov, Yury V.
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CiteExportLink to record
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Citation style
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  • ieee
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  • sv-SE
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  • de-DE
  • Other locale
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Output format
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