TOA Estimation in UWB: Comparison between Time and Frequency Domain Processing

  • Eva Lagunas
  • Lorenzo Taponecco
  • Montse Nájar
  • Antonio D’Amico
Part of the Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering book series (LNICST, volume 45)

Abstract

A comparison between time and frequency domain TOA estimators compliant with the 802.15.4a Standard has been made. The time domain estimator is done in two stages. One has the goal of identify the first pulse in each symbol interval and the other aims to acquire the start of frame delimiter. The frequency domain estimator is also based in two stages. A simple coarse estimation stage provides the symbol synchronization required by the fine estimation stage which finds the first delay of the first arriving path in a power delay profile developed in the frequency domain by using high resolution spectral estimation techniques. An accuracy of few centimeters is asymptotically achieved by both estimators. While time domain estimator shows slightly more accurate results at high values of SNR, frequency domain estimators works slightly better at low SNR.

Keywords

Time of Arrival estimation Ultra-Wide Band IEEE 802.15.4a Standard frequency domain time domain 

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References

  1. 1.
    D’Amico, A.A., Mengali, U., Taponecco, L.: Ranging Algorithm for the IEEE 802.15.4a Standard. In: Proceedings IEEE International Conference on Ultra-Wideband, September 9-11, pp. 285–289. IEEE, Vancouver (2009) ISBN 978-1-4244-2931-8 Google Scholar
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Copyright information

© ICST Institute for Computer Science, Social Informatics and Telecommunications Engineering 2010

Authors and Affiliations

  • Eva Lagunas
    • 1
  • Lorenzo Taponecco
    • 3
  • Montse Nájar
    • 1
    • 2
  • Antonio D’Amico
    • 3
  1. 1.Department of Signal Theory and CommunicationsUniversitat Politècnica de Catalunya (UPC)BarcelonaSpain
  2. 2.Centre Tecnològic de Telecomunicacions de Catalunya (CTTC)CastelldefelsSpain
  3. 3.Department of Information EngineeringUniversità di PisaPisaItaly

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