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      Accurate positioning in ultra-wideband systems

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      Author(s)
      Soganci, H.
      Gezici, Sinan
      Date
      2011
      Source Title
      IEEE Wireless Communications
      Print ISSN
      1536-1284
      Publisher
      Institute of Electrical and Electronics Engineers
      Volume
      47
      Issue
      2
      Pages
      19 - 27
      Language
      English
      Type
      Article
      Item Usage Stats
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      Abstract
      Accurate positioning systems can be realized via ultra-wideband signals due to their high time resolution. In this article, position estimation is studied for UWB systems. After a brief introduction to UWB signals and their positioning applications, two-step positioning systems are investigated from a UWB perspective. It is observed that time-based positioning is well suited for UWB systems. Then time-based UWB ranging is studied in detail, and the main challenges, theoretical limits, and range estimation algorithms are presented. Performance of some practical time-based ranging algorithms is investigated and compared against the maximum likelihood estimator and the theoretical limits. The trade-off between complexity and accuracy is observed.
      Keywords
      Impulse Radio
      Location
      Geolocation
      Networks
      Signals
      Localization
      Environment
      Mitigation
      Permalink
      http://hdl.handle.net/11693/13380
      Published Version (Please cite this version)
      http://dx.doi.org/10.1109/MWC.2011.5751292
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      • Department of Electrical and Electronics Engineering 4011
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