Research Article
QUETZAL: qualified ultra-wideband testbed for reduced data-rates and location
@INPROCEEDINGS{10.1109/TRIDNT.2006.1649146 , author={Antonio Mollfulleda and Montse Najar and Pavel Miskovsky and Joan A. Leyva and Lluis Berenguer and Christian Ibars and Monica Navarro}, title={QUETZAL: qualified ultra-wideband testbed for reduced data-rates and location}, proceedings={2nd International IEEE/Create-Net Conference on Testbeds and Research Infrastructures for the Development of Networks and Communities}, publisher={IEEE}, proceedings_a={TRIDENTCOM}, year={2006}, month={7}, keywords={}, doi={10.1109/TRIDNT.2006.1649146 } }- Antonio Mollfulleda
Montse Najar
Pavel Miskovsky
Joan A. Leyva
Lluis Berenguer
Christian Ibars
Monica Navarro
Year: 2006
QUETZAL: qualified ultra-wideband testbed for reduced data-rates and location
TRIDENTCOM
IEEE
DOI: 10.1109/TRIDNT.2006.1649146
Abstract
This work presents an UWB testbed for reduced data rates with capabilities of measuring range and location. The transmitter uses time hopping spread spectrum codes to reduce the peak to average ratio in the power spectral density. The pulse generator is based on a class-S digital pulse amplifier and a step recover diode circuit. The antenna subsystem is based on a bow-tie topology. The approach for the receiver is based on a filter bank reducing the complexity of the traditional RAKE receiver. Normalized minimum variance algorithm is proposed for estimating time of arrival exploiting the transmitted pulse train. Positioning estimation is tackled with the extended Kalman filter with TOA bias tracking allowing high accuracy even in non line of sight scenarios.
