This paper investigates time of arrival estimation via impulse radio ultra-wideband technology. A dense multipath channel is assumed and frequency-selective propagation effects are taken into account that make the individual received pulses different in shape from the transmitted monocycles. Assuming only an approximate knowledge of the received pulses' duration, a time of arrival estimator is derived making use of least mean square techniques. The algorithm operates on energy measurements made on a folded version of the received signal. The estimator performance is investigated by simulation under implementation conditions of different complexity. Comparisons are made with other available schemes.
TOA Estimation with Pulses of Unknown Shape
D'AMICO, ANTONIO ALBERTO;MENGALI, UMBERTO;
2007-01-01
Abstract
This paper investigates time of arrival estimation via impulse radio ultra-wideband technology. A dense multipath channel is assumed and frequency-selective propagation effects are taken into account that make the individual received pulses different in shape from the transmitted monocycles. Assuming only an approximate knowledge of the received pulses' duration, a time of arrival estimator is derived making use of least mean square techniques. The algorithm operates on energy measurements made on a folded version of the received signal. The estimator performance is investigated by simulation under implementation conditions of different complexity. Comparisons are made with other available schemes.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
