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A few years ago, IEEE 802.15.4a channel models t were initially introduced to assess the performance of Low Data Rate (LDR) Impulse Radio - Ultra Wideband (IR-UWB) peer-to-peer communications in a variety of indoor and outdoor environments, including Line of Sight (LOS) and Non Line of Sight (NLOS) propagation configurations. However, recent r wireless applications such as indoor target tracking or...
Reliable range-based tracking using ultra-wideband (UWB) radio signals is traditionally problematic in indoor environments. It is indeed widely admitted that non line-of-sight (NLOS) channel configurations introduce significant biases on measured temporal metrics such as times of arrival (TOA), and hence, alter position estimates accordingly. In order to enhance the tracking performance, we propose...
Energy detection receiver is one of the most interesting solution for non-coherent low data rate and low complexity UWB systems. In order to keep the complexity of the receiver structure low the same approach should be used also for ToA (time of arrival) estimation purposes. In this paper, after showing that a generalized maximum likelihood estimator for ToA is a sliding window energy based estimator,...
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