Title:
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TOA Estimation in UWB: Comparison between time and frequency domain processing
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Author:
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Lagunas Targarona, Eva; Taponecco, Lorenzo; Nájar Martón, Montserrat; D'Amico, Antonio
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Other authors:
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Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions; Universitat Politècnica de Catalunya. A&MP - Grup de Processament d'Arrays i Sistemes Multicanal |
Abstract:
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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 rst 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 ne estimation stage which nds the
rst delay of the rst arriving path in a power delay pro le 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 |
Subject(s):
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-Àrees temàtiques de la UPC::Enginyeria de la telecomunicació -Technologies of architecture -Signal theory (Telecommunication) -Ultra-wideband antennas -IEEE 802.16 (Standard) -Senyal, Teoria del (Telecomunicació) |
Rights:
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Document type:
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Article - Published version Conference Object |
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