Rapid Synchronization for Ultra-Wideband Communication Systems
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Very high data rate packet systems, such as those based on ultra-wideband (UWB) signaling, face an increasingly important challenge – UWB radio uses sub-nanosecond pulses to transmit information, resulting is high resolution in time implying that the acquisition algorithm must employ sub-pulse duration steps, thereby leading to a large search space, which consequently leads to large mean acquisition time (MAT). The role of synchronization is essentially to determine the relative delay of the received signal with respect to a template signal in the receiver. This paper addresses coarse synchronization in UWB multipath environments taking into account the specific properties of UWB signals. Since we are interested in low signalto-noise ratio environments, the serial search technique is considered and the performance measure is the MAT. This shows how the design of the correlation parameters affects the time to achieve synchronization.
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