超宽带无线通信粗同步简化算法研究

Research on a Simplified Coarse Synchronization Algorithm in Untra-wideband Communication

在超宽带通信系统中,对信号的同步精度要求极高。接收信号同步的好坏,直接影响到解调的信息数据误码率。文中提出一种简化粗同步过程的简化新算法。该算法可以减少粗同步过程中的计算量,从而缩短同步时间,满足超宽带高速率通信的需要。该算法参数调节灵活,适用范围较大,可根据具体接收机性能指标的要求在计算量的节省和同步性能之间进行权衡,确定具体参数值。文中对于算法中参数设置与计算量、同步性能之间的关系也进行了深入的讨论。

High synchronization precision of received signals is needed in an Ultra-wide communication system.The BER performance of demodulated information is directly affected by the synchronization quality.In this paper,a new modi- fied coarse synchronization algorithm is proposed.To meet the need of high-speed communication,this algorithm can decrease synchronization calculations and reduce synchronization time.It is flexible to adjust the parameters to keep bal- ance between calculations and system performance.The relationship between them is also deeply discussed.