Timing Synchronization in Ultra-Wideband Systems with Delay Line Combination Receivers

This paper proposes a novel non-data aided timing synchronization algorithm designated as "timing with delay line combination" (TDLC), to improve the synchronization speed of differential impulse radio ultra-wideband systems. Continuously integrating the combinative output signal provided by the proposed "frame-differential delay line" (FDL), it is found that the integration output exhibits a sharp rising or falling transition at the moment that the first signal per symbol arrives. By accurately detecting the time of the rising or falling edge, the symbol boundary can be simply derived. The proposed scheme achieves timing synchronization within a single symbol duration