基于LEO卫星信道的OFDM系统频偏估计算法
Frequency Offset Estimation for OFDM Systems on LEO Satellite Channel
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摘要: 针对LEO信道多径衰落的特性,提出了OFDM系统频率偏差估计算法。实验结果表明,本文提出的整数倍频偏估计算法的错误概率低,小数倍频偏估计算法的均方误差小,适用于纠正基于LEO信道的OFDM系统频率偏差。Abstract: On the basis of the characteristics of the LEO channel,a pilots-aided frequency offset estimation algorithm for OFDM systems is proposed.The simulation results are presented in error probability for integer frequency offset estimation and in mean square error(MSE)for fructional frequency offset estimation.They show that the proposed algorithms are available for frequency offset correction of OFDM systems on LEO satellite channel.
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