一种适用于OFDM-TDMA系统的载波频率偏移估计算法
A Carrier Offset Estimation Algorithm for OFDM-TDMA System
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摘要: 该文提出了一种适用于OFDM-TDMA系统的载波频率偏移盲估计算法,它利用OFDM载波信道间内在的正交性,寻找与最小估计均方误差相对应的频偏来校正系统的频率偏移.通过计算机仿真表明,这种算法在频率选择性衰落信道下具有高的估计精度,且适用于时变环境下的频偏跟踪.Abstract: In this paper, a carrier offset estimation algorithm for OFDM-TDMA system is presented by taking advantage of the inherent orthogonality among OFDM subchannels. The simulation results illustrate that the algorithm offers a higher accuracy in the frequency-selected fading channel and fits the carrier traking in time-variant environments.
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