摘要
研究各种符号定时同步算法在不同信道模型下的性能,针对Park算法中定时度量式要求训练帧中心对称的缺点,提出一种改进算法,该算法重新定义了定时度量式.理论分析和仿真结果表明,改进算法的同步精度略高于Park算法.
The performance of different symbol timing synchronization techniques under a variety of mobile channel models is investigated and a novel synchronization algorithm is presented to overcome the shortcomings of the synchronization algorithm proposed by Park. The novel algorithm redefines the timing estimator, and the theoretical analyses and simulation resuits show that it is more accurate in symbol timing,
出处
《汕头大学学报（自然科学版）》
2007年第1期76-80,共5页
Journal of Shantou University：Natural Science Edition
关键词
正交频分复用(OFDM)
定时同步
符号间干扰(ISI)
orthogonal frequency division multiplexing（OFDM）
timing synchronization
intersymbol interference （ISI）
