The overview of synchronization in DS-UWB

Ultra-Wide band (UWB) radio, transmits data using nanosecond level impulses, is gaining increasing attention own to its attractive features that include low-complexity hardware and high transmission rate. However, UWB system has to cope with great design challenges, including synchronization, multi-path energy combining. A review of acquisition methods in direct sequence-spread spectrum (DS-SS) communication system is given in detail at first and analysis of their performance with evaluating parameters, which is the essential reference to DS-SS acquisition algorithm is shown next. Then, several acquisition scheme used specially in DS-UWB system is analyzed. Hardware complexity and acquisition performance in DS-UWB is still the two sides of one contradiction needed to be tradeoff.