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MOBILIGHT
2010

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

8 years 9 months ago
TOA Estimation in UWB: Comparison between Time and Frequency Domain Processing
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.1 Key words: Time of Arrival estimation, Ultra-Wide Band, IEEE 802.15.4a Standard, frequency domain, time domain
Eva Lagunas, Lorenzo Taponecco, Montse Nája
Added 14 Feb 2011
Updated 14 Feb 2011
Type Journal
Year 2010
Where MOBILIGHT
Authors Eva Lagunas, Lorenzo Taponecco, Montse Nájar, Antonio A. D'Amico
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