JIANG Yan-xiang, WANG Dong-ming, GAO Xi-qi, et al. Frequency offset estimator for OFDM with time-frequency training sequence[J]. 2006, (6): 10-15.DOI:
时频训练序列OFDM频偏估计方法
摘要
给出了一种比率可调节的时频训练序列
通过频域训练序列和预定义查找表实现粗频偏估计
通过时域训练序列实现细频偏估计。仿真结果与复杂度分析表明所提出的方法在负载几乎相同的情况下
性能优于Lei的方法
而运算量却大大降低。
Abstract
A ratio-adjustable time-frequency training sequence was proposed.The coarse carrier frequency offset(CFO) estimation was accomplished with the aid of the training sequence in frequency domain and a predefined lookup table
while the fine one was obtained by the aid of the training sequence in time domain.Simulation results show that the per-formance of the proposed method is better than Lei’s method with almost the same overhead.However
its computational complexity is much lower than Lei’s.