摘要
作为一种高效的数据传输技术——正交频分复用(OFDM)技术,具有良好的抗衰落能力,实现数据的高速传输。但是OFDM对同步误差十分敏感,特别是对于频率同步误差。文中提出了一种低复杂度的同步估计,来实现载波频率捕获和跟踪。分析了该算法的性能,并在信道中进行了性能分析,给出了仿真结果。结果表明,该算法具有较高的精度和较低的计算复杂度。
As an efficient technology of data transmission, OFDM has the capability against mum-paul fading to realize the high data transmission. But it is sensitive to synchronization error, and especially the frequency synchronization error. In this paper, a novel frequency synchronization estimation algorithm is provided to achieve carrier frequency capture and tracking. The performance of this algorithm is analyzed. The results show that the algorithm has relatively higher precision and lower computation complexity.
出处
《声学技术》
CSCD
北大核心
2006年第3期235-241,共7页
Technical Acoustics
关键词
OFDM
频率同步估计
衰落信道
OFDM
frequency synchronization estimation
fading channel
