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提出了在OFDM系统中的一种低复杂度帧同步方案。该方案利用了一帧中的循环前缀(CP)与末尾部分的相关性,在时域上进行相关运算。分析了该算法的性能,导出了多帧平均的改进算法。对其在噪声信道的性能进行了分析,并给出仿真结果。结果表明,提出的算法有较高的精度。
A low complexity frame synchronization scheme in OFDM system is proposed. The scheme uses the correlation between cyclic prefix (CP) and the last part of a frame to perform correlation operation in the time domain. The performance of this algorithm is analyzed and an improved algorithm of multi-frame averaging is derived. The performance of the noise channel is analyzed and the simulation results are given. The results show that the proposed algorithm has higher accuracy.