一种LTE系统频偏估计算法  

New frequency offset estimation methods for LTE systems

作　　者：黄翮[1,2] 朱宇霞[1,2] 

机构地区：[1]武汉邮电科学研究院,武汉430074 [2]北京北方烽火科技有限公司,北京100085

出　　处：《信息技术》2015年第9期166-168,173,共4页Information Technology

摘　　要：载波频偏(Carrier Frequency Offset,CFO)对数据影响较大,降低比特误码率(Bit Error Rate,BER),造成载波间干扰(Inter-Carrier Interference,ICI),往往需要估计频偏值以补偿其带来的影响。在一般频偏估计算法的基础上,提出了一种通过多子帧数据统计得到更加准确的频偏估计的算法。同时仿真了该算法在不同信道下的性能,得出了一种最精确的频偏估计方法。Carrier frequency offset had a great influence on the data to reduce the bit error rate and cause the Inter-carrier interference. It needs an estimation of the frequency offset value for compensation. In this paper, a new accurate frequency offset estimation method based on the general estimation algorithm is proposed simulation results of , using multi-subframe data＇ s statistical estimation. At the same time, the the algorithm under different channels lead to one most accurate method for frequency offset estimation.

关 键 词：载波频偏估计 多子帧统计 AWGN信道 RAYLEIGH信道 

分 类 号：TN929.5[电子电信—通信与信息系统]