Considering delay inaccuracies in a transmit-reference UWB communication system

Abstract

A delay-hopped transmitted-reference ultra-wideband (UWB) communication system is studied and further developed. We previously proposed an accurate signal processing model and several receiver algorithms. This paper emphasizes on the importance of including the channel parameters in the data model for more general and realistic channels, which results in more flexible and robust receiver algorithms. Various channel correlation measurement results are shown, and system performance is tested with measured channels under different practical situations. The receiver algorithm is shown to be robust under the common situation where the receiver delays (correlation lags) have a certain offset compared to the transmit delays (spacing between two pulses in a doublet).