摘要
从IEEE 802.11a数据结构出发,分析了频偏对系统的影响,提出了使用延时自相关进行帧检测、符号定时,以及估计载波频偏,利用导频进行频率跟踪,仿真结果表明,该算法能克服噪声及频偏影响,较好的补偿了频偏。
According to the packet structure of standard IEEE802.11a,mathematical methods for OFDM frame detection,symbol timing,carrier frequency offset estimating using training sequence and phase tracking using pilot are proposed.The simulation result shows that this algorithm can overcome the influence of noise and carrier frequency offset,result in a fine compensation of frequency offset.
出处
《煤炭技术》
CAS
北大核心
2011年第4期170-171,共2页
Coal Technology
