摘要
针对OFDM载波频偏与采样时偏的联合估计问题,提出了一种基于递推最小二乘(RLS)算法的新方法。该估计方法采用递推计算方式,能方便实时地更新偏差量的估计值。仿真结果表明,这一方法与现有的同类方法相比,在相同的信道条件下具有更优的估计性能。
This paper presents a new method for joint estimation of carrier frequency offset and sampling time offset based on the recursive least-square （RLS） algorithm for OFDM systems in the tracking mode. The proposed algorithm takes the form of iterative computation, so it can easily update the estimates of both offsets in real time. Numerical simulation results show that the proposed algorithm has better estimation performance than other joint algorithms under the same channel conditions.
出处
《电视技术》
北大核心
2007年第B08期9-12,共4页
Video Engineering
基金
上海-应用材料研究与发展基金项目(0507)
英特尔公司资助项目
关键词
接收机设计
载波频偏
采样时偏
receiver design
carrier frequency offset
sampling time offset
