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。
A ratio-adjustable time-frequency training sequence was proposed. The coarse cartier 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 performance 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.
出处
《通信学报》
EI
CSCD
北大核心
2006年第6期10-15,共6页
Journal on Communications
基金
国家自然科学基金资助项目(60496311)
国家高技术研究发展计划("863"计划)基金资助项目(2003AA123310)~~