摘要
基于802.11a突发数据帧结构,分析了突发分组传输中OFDM同步算法的性能;对802.11a突发数据帧中的短训练符号结构作了改进,给出了相应的时频域估计算法;该算法有良好的定时相关特性,运算复杂度低,仿真结果表明该算法具有很好的定时和频偏估计性能。
Based on the frame structure of 802.11a, this paper analyzes the performances of synchronization methods for OFDM in burst packet transmission, it also improves the structure of short training symbols in the frame of 802. I I a and gives the corresponding timing and frequency offset estimation method. The improved method brings good performance on timing correlation, and keeps the advantage of low complexity. Simulation results indicate that it has good performance on timing and frequency offset estimation.
出处
《电子科技》
2006年第4期51-54,70,共5页
Electronic Science and Technology
