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中文摘要：
该文提出一种适合于UWB-OFDM系统的符号盲同步方法.该方法是基于UWB-OFDM符号中的ZP功率出现规律性的分布特性,利用滑动窗能量检测的办法来进行符号同步.研究了高斯信道和UWB信道下的符号同步方法,并详细分析了UWB信道下接收信号的能量分布特性.为了提高同步性能,设计了多滑动窗方法代替双滑动窗方法.计算机仿真分析表明该方法无论在高斯还是UWB信道下都具有优异的性能.
英文摘要：
A robust blind symbol-timing synchronization scheme applicable to UWB-OFDM systems is presented. The proposed method is based on ZP（Zero-padded Prefix） power collection in the UWB-OFDM symbols whose ZP average power distribute regularly in the slide windows. The synchronization schemes in both Gaussian channel and UWB channel are investigated. Average power distribution of the received signal in UWB channel is analysed detailedly in order that symbol synchronizes accurately. A multi_slide_windows method is designed in order to improve the performance of synchronization. Finally computer results are also demonstrate the superior performance of the new method in both Ganssian channel and UWB channel.
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