一种新的OFDM系统载波频率捕获算法
A New Carrier Frequency Acquisition Algorithm for OFDM Systems
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摘要: 该文从OFDM信号的特性出发，采用单一训练帧，将OFDM系统的载波频率捕获等效为单载波频差估计。该文提出的算法仅使用一帧辅助数据；具有较高的精度，较少的计算量和较大的捕获范围；且不受多径信道，时偏及帧同步误差的影响。
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关键词:
- 正交频分复用;多载波;载波同步;捕获
Abstract: Based on the property of OFDM signal, a new carrier frequency acquisition algorithm is proposed, which employs only one block of identical time-domain training sym-bols. The proposed algorithm has good precision, low computations and large acquisition range. It is intrinsically robust to multipath channel and timing error. -
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