UWB pulse detection and TOA estimation using GLRT

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Abstract

In this paper, a novel statistical approach is presented for time-of-arrival (TOA) estimation based on first path (FP) pulse detection using a sub-Nyquist sampling ultra-wide band (UWB) receiver. The TOA measurement accuracy, which cannot be improved by averaging of the received signal, can be enhanced by the statistical processing of a number of TOA measurements. The TOA statistics are modeled and analyzed for a UWB receiver using threshold crossing detection of a pulse signal with noise. The detection and estimation scheme based on the Generalized Likelihood Ratio Test (GLRT) detector, which captures the full statistical information of the measurement data, is shown to achieve accurate TOA estimation and allows for a trade-off between the threshold level, the noise level, the amplitude and the arrival time of the first path pulse, and the accuracy of the obtained final TOA.

Original languageEnglish
Article number68
Pages (from-to)1-12
Number of pages12
JournalEurasip Journal on Advances in Signal Processing
Volume2017
Issue number1
DOIs
Publication statusPublished - 2017

Keywords

  • GLRT
  • Positioning
  • Ranging
  • Sub-Nyquist sampling
  • Time-of-arrival (TOA) estimation
  • Ultra-wide band (UWB)

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