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In this paper, we study the effectiveness of the multipath energy combining for the coarse acquisition of UWB signals. The performances of different detectors, including single pulse correlator (SPC), energy detector (ED), and transmittedreference (TR), are derived and compared in terms of the mean acquisition time (MAT) and the false acquisition rate (FAR) using flow graph analysis in a two-step...
Efficient acquisition is a very challenge task for ultra-wideband (UWB) systems due to the extremely low transmission power of UWB signals. An energy detector (ED) is not only easy to implement in practice but also can combine the multipath energy, which in turn renders a possible gain in the signal-to-noise ratio (SNR) of the acquisition algorithm. In this paper, we propose a two-step random search...
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