Digital receiver for TR-UWB systems with inter-pulse interference

An ultra wideband (UWB) transmitted reference (TR) system that allows inter-pulse interference (IPI) was recently proposed. It relaxes a restrictive requirement that the reference pulse has to be well separated from the data-modulated pulse as in a conventional TR system. With that scheme, data rate is substantially increased, especially in a long multipath channel, and better detection performance of the receiver is achieved even if IPI is present in the system. For low cost and high flexibility, this paper considers practical digital implementation of the receiver. Impact of using a low resolution analog-to-digital converter is investigated. Joint performance of template estimation and symbol detection is also studied.