Research Article
TOA Estimation in UWB: Comparison between Time and Frequency Domain Processing
@INPROCEEDINGS{10.1007/978-3-642-16644-0_44, author={Eva Lagunas and Lorenzo Taponecco and Montse N\^{a}jar and Antonio D’Amico}, title={TOA Estimation in UWB: Comparison between Time and Frequency Domain Processing}, proceedings={Mobile Lightweight Wireless Systems. Second International ICST Conference, MOBILIGHT 2010, Barcelona, Spain, May 10-12, 2010, Revised Selected Papers}, proceedings_a={MOBILIGHT}, year={2012}, month={10}, keywords={Time of Arrival estimation Ultra-Wide Band IEEE 802.15.4a Standard frequency domain time domain}, doi={10.1007/978-3-642-16644-0_44} }- Eva Lagunas
Lorenzo Taponecco
Montse Nájar
Antonio D’Amico
Year: 2012
TOA Estimation in UWB: Comparison between Time and Frequency Domain Processing
MOBILIGHT
Springer
DOI: 10.1007/978-3-642-16644-0_44
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.
